281009820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 288

約数和(自身を含む): 1009387008

約数和(自身を除く): 728377188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 52, 60, 65, 70, 74, 78, 84, 91, 105, 107, 111, 130, 140, 148, 156, 169, 182, 185, 195, 210, 214, 222, 259, 260, 273, 321, 338, 364, 370, 390, 420, 428, 444, 455, 481, 507, 518, 535, 546, 555, 642, 676, 740, 749, 777, 780, 845, 910, 962, 1014, 1036, 1070, 1092, 1110, 1183, 1284, 1295, 1365, 1391, 1443, 1498, 1554, 1605, 1690, 1820, 1924, 2028, 2140, 2220, 2247, 2366, 2405, 2535, 2590, 2730, 2782, 2886, 2996, 3108, 3210, 3367, 3380, 3549, 3745, 3885, 3959, 4173, 4494, 4732, 4810, 5070, 5180, 5460, 5564, 5772, 5915, 6253, 6420, 6734, 6955, 7098, 7215, 7490, 7770, 7918, 8346, 8988, 9620, 9737, 10101, 10140, 11235, 11830, 11877, 12506, 13468, 13910, 14196, 14430, 14980, 15540, 15836, 16692, 16835, 17745, 18083, 18759, 19474, 19795, 20202, 20865, 22470, 23660, 23754, 25012, 27713, 27820, 28860, 29211, 31265, 33670, 35490, 36166, 37518, 38948, 39590, 40404, 41730, 43771, 44940, 47508, 48685, 50505, 51467, 54249, 55426, 58422, 59385, 62530, 67340, 70980, 72332, 75036, 79180, 83139, 83460, 87542, 90415, 93795, 97370, 101010, 102934, 108498, 110852, 116844, 118770, 125060, 126581, 131313, 138565, 146055, 154401, 166278, 175084, 180830, 187590, 194740, 202020, 205868, 216996, 218855, 237540, 253162, 257335, 262626, 271245, 277130, 292110, 308802, 332556, 360269, 361660, 375180, 379743, 415695, 437710, 506324, 514670, 525252, 542490, 554260, 584220, 617604, 632905, 656565, 669071, 720538, 759486, 772005, 831390, 875420, 1029340, 1080807, 1084980, 1265810, 1313130, 1338142, 1441076, 1518972, 1544010, 1662780, 1801345, 1898715, 2007213, 2161614, 2531620, 2626260, 2676284, 3088020, 3345355, 3602690, 3797430, 4014426, 4323228, 4683497, 5404035, 6690710, 7205380, 7594860, 8028852, 9366994, 10036065, 10808070, 13381420, 14050491, 18733988, 20072130, 21616140, 23417485, 28100982, 40144260, 46834970, 56201964, 70252455, 93669940, 140504910, 281009820]

約数ペア:

[(1, 281009820), (2, 140504910), (3, 93669940), (4, 70252455), (5, 56201964), (6, 46834970), (7, 40144260), (10, 28100982), (12, 23417485), (13, 21616140), (14, 20072130), (15, 18733988), (20, 14050491), (21, 13381420), (26, 10808070), (28, 10036065), (30, 9366994), (35, 8028852), (37, 7594860), (39, 7205380), (42, 6690710), (52, 5404035), (60, 4683497), (65, 4323228), (70, 4014426), (74, 3797430), (78, 3602690), (84, 3345355), (91, 3088020), (105, 2676284), (107, 2626260), (111, 2531620), (130, 2161614), (140, 2007213), (148, 1898715), (156, 1801345), (169, 1662780), (182, 1544010), (185, 1518972), (195, 1441076), (210, 1338142), (214, 1313130), (222, 1265810), (259, 1084980), (260, 1080807), (273, 1029340), (321, 875420), (338, 831390), (364, 772005), (370, 759486), (390, 720538), (420, 669071), (428, 656565), (444, 632905), (455, 617604), (481, 584220), (507, 554260), (518, 542490), (535, 525252), (546, 514670), (555, 506324), (642, 437710), (676, 415695), (740, 379743), (749, 375180), (777, 361660), (780, 360269), (845, 332556), (910, 308802), (962, 292110), (1014, 277130), (1036, 271245), (1070, 262626), (1092, 257335), (1110, 253162), (1183, 237540), (1284, 218855), (1295, 216996), (1365, 205868), (1391, 202020), (1443, 194740), (1498, 187590), (1554, 180830), (1605, 175084), (1690, 166278), (1820, 154401), (1924, 146055), (2028, 138565), (2140, 131313), (2220, 126581), (2247, 125060), (2366, 118770), (2405, 116844), (2535, 110852), (2590, 108498), (2730, 102934), (2782, 101010), (2886, 97370), (2996, 93795), (3108, 90415), (3210, 87542), (3367, 83460), (3380, 83139), (3549, 79180), (3745, 75036), (3885, 72332), (3959, 70980), (4173, 67340), (4494, 62530), (4732, 59385), (4810, 58422), (5070, 55426), (5180, 54249), (5460, 51467), (5564, 50505), (5772, 48685), (5915, 47508), (6253, 44940), (6420, 43771), (6734, 41730), (6955, 40404), (7098, 39590), (7215, 38948), (7490, 37518), (7770, 36166), (7918, 35490), (8346, 33670), (8988, 31265), (9620, 29211), (9737, 28860), (10101, 27820), (10140, 27713), (11235, 25012), (11830, 23754), (11877, 23660), (12506, 22470), (13468, 20865), (13910, 20202), (14196, 19795), (14430, 19474), (14980, 18759), (15540, 18083), (15836, 17745), (16692, 16835)]