31117940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 76962312

約数和(自身を除く): 45844372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 113, 140, 196, 226, 245, 281, 452, 490, 562, 565, 791, 980, 1124, 1130, 1405, 1582, 1967, 2260, 2810, 3164, 3934, 3955, 5537, 5620, 7868, 7910, 9835, 11074, 13769, 15820, 19670, 22148, 27538, 27685, 31753, 39340, 55076, 55370, 63506, 68845, 110740, 127012, 137690, 158765, 222271, 275380, 317530, 444542, 635060, 889084, 1111355, 1555897, 2222710, 3111794, 4445420, 6223588, 7779485, 15558970, 31117940]

約数ペア:

[(1, 31117940), (2, 15558970), (4, 7779485), (5, 6223588), (7, 4445420), (10, 3111794), (14, 2222710), (20, 1555897), (28, 1111355), (35, 889084), (49, 635060), (70, 444542), (98, 317530), (113, 275380), (140, 222271), (196, 158765), (226, 137690), (245, 127012), (281, 110740), (452, 68845), (490, 63506), (562, 55370), (565, 55076), (791, 39340), (980, 31753), (1124, 27685), (1130, 27538), (1405, 22148), (1582, 19670), (1967, 15820), (2260, 13769), (2810, 11074), (3164, 9835), (3934, 7910), (3955, 7868), (5537, 5620)]