655689580

素因数分解:

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

素因数の和:193

約数の個数: 216

約数和(自身を含む): 1797970608

約数和(自身を除く): 1142281028

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 49, 52, 65, 70, 74, 91, 98, 107, 130, 140, 148, 169, 182, 185, 196, 214, 245, 259, 260, 338, 364, 370, 428, 455, 481, 490, 518, 535, 637, 676, 740, 749, 845, 910, 962, 980, 1036, 1070, 1183, 1274, 1295, 1391, 1498, 1690, 1813, 1820, 1924, 2140, 2366, 2405, 2548, 2590, 2782, 2996, 3185, 3367, 3380, 3626, 3745, 3959, 4732, 4810, 5180, 5243, 5564, 5915, 6253, 6370, 6734, 6955, 7252, 7490, 7918, 8281, 9065, 9620, 9737, 10486, 11830, 12506, 12740, 13468, 13910, 14980, 15836, 16562, 16835, 18083, 18130, 19474, 19795, 20972, 23569, 23660, 25012, 26215, 27713, 27820, 31265, 33124, 33670, 36166, 36260, 38948, 39590, 41405, 43771, 47138, 48685, 51467, 52430, 55426, 62530, 67340, 68159, 72332, 79180, 82810, 87542, 90415, 94276, 97370, 102934, 104860, 110852, 117845, 125060, 126581, 136318, 138565, 165620, 175084, 180830, 193991, 194740, 205868, 218855, 235690, 253162, 257335, 272636, 277130, 306397, 340795, 360269, 361660, 387982, 437710, 471380, 506324, 514670, 554260, 612794, 632905, 669071, 681590, 720538, 775964, 875420, 886067, 969955, 1029340, 1225588, 1265810, 1338142, 1363180, 1441076, 1531985, 1772134, 1801345, 1939910, 2521883, 2531620, 2676284, 3063970, 3345355, 3544268, 3602690, 3879820, 4430335, 4683497, 5043766, 6127940, 6690710, 7205380, 8860670, 9366994, 10087532, 12609415, 13381420, 17721340, 18733988, 23417485, 25218830, 32784479, 46834970, 50437660, 65568958, 93669940, 131137916, 163922395, 327844790, 655689580]

約数ペア:

[(1, 655689580), (2, 327844790), (4, 163922395), (5, 131137916), (7, 93669940), (10, 65568958), (13, 50437660), (14, 46834970), (20, 32784479), (26, 25218830), (28, 23417485), (35, 18733988), (37, 17721340), (49, 13381420), (52, 12609415), (65, 10087532), (70, 9366994), (74, 8860670), (91, 7205380), (98, 6690710), (107, 6127940), (130, 5043766), (140, 4683497), (148, 4430335), (169, 3879820), (182, 3602690), (185, 3544268), (196, 3345355), (214, 3063970), (245, 2676284), (259, 2531620), (260, 2521883), (338, 1939910), (364, 1801345), (370, 1772134), (428, 1531985), (455, 1441076), (481, 1363180), (490, 1338142), (518, 1265810), (535, 1225588), (637, 1029340), (676, 969955), (740, 886067), (749, 875420), (845, 775964), (910, 720538), (962, 681590), (980, 669071), (1036, 632905), (1070, 612794), (1183, 554260), (1274, 514670), (1295, 506324), (1391, 471380), (1498, 437710), (1690, 387982), (1813, 361660), (1820, 360269), (1924, 340795), (2140, 306397), (2366, 277130), (2405, 272636), (2548, 257335), (2590, 253162), (2782, 235690), (2996, 218855), (3185, 205868), (3367, 194740), (3380, 193991), (3626, 180830), (3745, 175084), (3959, 165620), (4732, 138565), (4810, 136318), (5180, 126581), (5243, 125060), (5564, 117845), (5915, 110852), (6253, 104860), (6370, 102934), (6734, 97370), (6955, 94276), (7252, 90415), (7490, 87542), (7918, 82810), (8281, 79180), (9065, 72332), (9620, 68159), (9737, 67340), (10486, 62530), (11830, 55426), (12506, 52430), (12740, 51467), (13468, 48685), (13910, 47138), (14980, 43771), (15836, 41405), (16562, 39590), (16835, 38948), (18083, 36260), (18130, 36166), (19474, 33670), (19795, 33124), (20972, 31265), (23569, 27820), (23660, 27713), (25012, 26215)]