19711160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 55520640

約数和(自身を除く): 35809480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 41, 56, 68, 70, 82, 85, 101, 119, 136, 140, 164, 170, 202, 205, 238, 280, 287, 328, 340, 404, 410, 476, 505, 574, 595, 680, 697, 707, 808, 820, 952, 1010, 1148, 1190, 1394, 1414, 1435, 1640, 1717, 2020, 2296, 2380, 2788, 2828, 2870, 3434, 3485, 3535, 4040, 4141, 4760, 4879, 5576, 5656, 5740, 6868, 6970, 7070, 8282, 8585, 9758, 11480, 12019, 13736, 13940, 14140, 16564, 17170, 19516, 20705, 24038, 24395, 27880, 28280, 28987, 33128, 34340, 39032, 41410, 48076, 48790, 57974, 60095, 68680, 70397, 82820, 96152, 97580, 115948, 120190, 140794, 144935, 165640, 195160, 231896, 240380, 281588, 289870, 351985, 480760, 492779, 563176, 579740, 703970, 985558, 1159480, 1407940, 1971116, 2463895, 2815880, 3942232, 4927790, 9855580, 19711160]

約数ペア:

[(1, 19711160), (2, 9855580), (4, 4927790), (5, 3942232), (7, 2815880), (8, 2463895), (10, 1971116), (14, 1407940), (17, 1159480), (20, 985558), (28, 703970), (34, 579740), (35, 563176), (40, 492779), (41, 480760), (56, 351985), (68, 289870), (70, 281588), (82, 240380), (85, 231896), (101, 195160), (119, 165640), (136, 144935), (140, 140794), (164, 120190), (170, 115948), (202, 97580), (205, 96152), (238, 82820), (280, 70397), (287, 68680), (328, 60095), (340, 57974), (404, 48790), (410, 48076), (476, 41410), (505, 39032), (574, 34340), (595, 33128), (680, 28987), (697, 28280), (707, 27880), (808, 24395), (820, 24038), (952, 20705), (1010, 19516), (1148, 17170), (1190, 16564), (1394, 14140), (1414, 13940), (1435, 13736), (1640, 12019), (1717, 11480), (2020, 9758), (2296, 8585), (2380, 8282), (2788, 7070), (2828, 6970), (2870, 6868), (3434, 5740), (3485, 5656), (3535, 5576), (4040, 4879), (4141, 4760)]