17971940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 46061568

約数和(自身を除く): 28089628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 101, 124, 140, 155, 164, 202, 205, 217, 287, 310, 404, 410, 434, 505, 574, 620, 707, 820, 868, 1010, 1085, 1148, 1271, 1414, 1435, 2020, 2170, 2542, 2828, 2870, 3131, 3535, 4141, 4340, 5084, 5740, 6262, 6355, 7070, 8282, 8897, 12524, 12710, 14140, 15655, 16564, 17794, 20705, 21917, 25420, 28987, 31310, 35588, 41410, 43834, 44485, 57974, 62620, 82820, 87668, 88970, 109585, 115948, 128371, 144935, 177940, 219170, 256742, 289870, 438340, 513484, 579740, 641855, 898597, 1283710, 1797194, 2567420, 3594388, 4492985, 8985970, 17971940]

約数ペア:

[(1, 17971940), (2, 8985970), (4, 4492985), (5, 3594388), (7, 2567420), (10, 1797194), (14, 1283710), (20, 898597), (28, 641855), (31, 579740), (35, 513484), (41, 438340), (62, 289870), (70, 256742), (82, 219170), (101, 177940), (124, 144935), (140, 128371), (155, 115948), (164, 109585), (202, 88970), (205, 87668), (217, 82820), (287, 62620), (310, 57974), (404, 44485), (410, 43834), (434, 41410), (505, 35588), (574, 31310), (620, 28987), (707, 25420), (820, 21917), (868, 20705), (1010, 17794), (1085, 16564), (1148, 15655), (1271, 14140), (1414, 12710), (1435, 12524), (2020, 8897), (2170, 8282), (2542, 7070), (2828, 6355), (2870, 6262), (3131, 5740), (3535, 5084), (4141, 4340)]