28918890

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:154

約数の個数: 256

約数和(自身を含む): 104509440

約数和(自身を除く): 75590550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 18, 21, 22, 26, 27, 30, 33, 35, 39, 42, 45, 54, 55, 63, 65, 66, 70, 77, 78, 90, 91, 99, 105, 107, 110, 117, 126, 130, 135, 143, 154, 165, 182, 189, 195, 198, 210, 214, 231, 234, 270, 273, 286, 297, 315, 321, 330, 351, 378, 385, 390, 429, 455, 462, 495, 535, 546, 585, 594, 630, 642, 693, 702, 715, 749, 770, 819, 858, 910, 945, 963, 990, 1001, 1070, 1155, 1170, 1177, 1287, 1365, 1386, 1391, 1430, 1485, 1498, 1605, 1638, 1755, 1890, 1926, 2002, 2079, 2145, 2247, 2310, 2354, 2457, 2574, 2730, 2782, 2889, 2970, 3003, 3210, 3465, 3510, 3531, 3745, 3861, 4095, 4158, 4173, 4290, 4494, 4815, 4914, 5005, 5778, 5885, 6006, 6435, 6741, 6930, 6955, 7062, 7490, 7722, 8190, 8239, 8346, 9009, 9630, 9737, 10010, 10395, 10593, 11235, 11770, 12285, 12519, 12870, 13482, 13910, 14445, 15015, 15301, 16478, 17655, 18018, 19305, 19474, 20223, 20790, 20865, 21186, 22470, 24570, 24717, 25038, 27027, 28890, 29211, 30030, 30602, 31779, 33705, 35310, 37557, 38610, 40446, 41195, 41730, 45045, 45903, 48685, 49434, 52965, 54054, 58422, 62595, 63558, 67410, 74151, 75114, 76505, 82390, 87633, 90090, 91806, 97370, 101115, 105930, 107107, 123585, 125190, 135135, 137709, 146055, 148302, 153010, 158895, 175266, 187785, 202230, 214214, 222453, 229515, 247170, 262899, 270270, 275418, 292110, 317790, 321321, 370755, 375570, 413127, 438165, 444906, 459030, 525798, 535535, 642642, 688545, 741510, 826254, 876330, 963963, 1071070, 1112265, 1314495, 1377090, 1606605, 1927926, 2065635, 2224530, 2628990, 2891889, 3213210, 4131270, 4819815, 5783778, 9639630, 14459445, 28918890]

約数ペア:

[(1, 28918890), (2, 14459445), (3, 9639630), (5, 5783778), (6, 4819815), (7, 4131270), (9, 3213210), (10, 2891889), (11, 2628990), (13, 2224530), (14, 2065635), (15, 1927926), (18, 1606605), (21, 1377090), (22, 1314495), (26, 1112265), (27, 1071070), (30, 963963), (33, 876330), (35, 826254), (39, 741510), (42, 688545), (45, 642642), (54, 535535), (55, 525798), (63, 459030), (65, 444906), (66, 438165), (70, 413127), (77, 375570), (78, 370755), (90, 321321), (91, 317790), (99, 292110), (105, 275418), (107, 270270), (110, 262899), (117, 247170), (126, 229515), (130, 222453), (135, 214214), (143, 202230), (154, 187785), (165, 175266), (182, 158895), (189, 153010), (195, 148302), (198, 146055), (210, 137709), (214, 135135), (231, 125190), (234, 123585), (270, 107107), (273, 105930), (286, 101115), (297, 97370), (315, 91806), (321, 90090), (330, 87633), (351, 82390), (378, 76505), (385, 75114), (390, 74151), (429, 67410), (455, 63558), (462, 62595), (495, 58422), (535, 54054), (546, 52965), (585, 49434), (594, 48685), (630, 45903), (642, 45045), (693, 41730), (702, 41195), (715, 40446), (749, 38610), (770, 37557), (819, 35310), (858, 33705), (910, 31779), (945, 30602), (963, 30030), (990, 29211), (1001, 28890), (1070, 27027), (1155, 25038), (1170, 24717), (1177, 24570), (1287, 22470), (1365, 21186), (1386, 20865), (1391, 20790), (1430, 20223), (1485, 19474), (1498, 19305), (1605, 18018), (1638, 17655), (1755, 16478), (1890, 15301), (1926, 15015), (2002, 14445), (2079, 13910), (2145, 13482), (2247, 12870), (2310, 12519), (2354, 12285), (2457, 11770), (2574, 11235), (2730, 10593), (2782, 10395), (2889, 10010), (2970, 9737), (3003, 9630), (3210, 9009), (3465, 8346), (3510, 8239), (3531, 8190), (3745, 7722), (3861, 7490), (4095, 7062), (4158, 6955), (4173, 6930), (4290, 6741), (4494, 6435), (4815, 6006), (4914, 5885), (5005, 5778)]