31457140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:697

約数の個数: 96

約数和(自身を含む): 82301184

約数和(自身を除く): 50844044

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 442, 572, 647, 715, 748, 884, 935, 1105, 1294, 1430, 1870, 2210, 2431, 2588, 2860, 3235, 3740, 4420, 4862, 6470, 7117, 8411, 9724, 10999, 12155, 12940, 14234, 16822, 21998, 24310, 28468, 33644, 35585, 42055, 43996, 48620, 54995, 71170, 84110, 92521, 109990, 120989, 142340, 142987, 168220, 185042, 219980, 241978, 285974, 370084, 462605, 483956, 571948, 604945, 714935, 925210, 1209890, 1429870, 1572857, 1850420, 2419780, 2859740, 3145714, 6291428, 7864285, 15728570, 31457140]

約数ペア:

[(1, 31457140), (2, 15728570), (4, 7864285), (5, 6291428), (10, 3145714), (11, 2859740), (13, 2419780), (17, 1850420), (20, 1572857), (22, 1429870), (26, 1209890), (34, 925210), (44, 714935), (52, 604945), (55, 571948), (65, 483956), (68, 462605), (85, 370084), (110, 285974), (130, 241978), (143, 219980), (170, 185042), (187, 168220), (220, 142987), (221, 142340), (260, 120989), (286, 109990), (340, 92521), (374, 84110), (442, 71170), (572, 54995), (647, 48620), (715, 43996), (748, 42055), (884, 35585), (935, 33644), (1105, 28468), (1294, 24310), (1430, 21998), (1870, 16822), (2210, 14234), (2431, 12940), (2588, 12155), (2860, 10999), (3235, 9724), (3740, 8411), (4420, 7117), (4862, 6470)]