31219480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1481}}^1$

素因数の和:1540

約数の個数: 64

約数和(自身を含む): 76826880

約数和(自身を除く): 45607400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1240, 1481, 2108, 2635, 2962, 4216, 5270, 5924, 7405, 10540, 11848, 14810, 21080, 25177, 29620, 45911, 50354, 59240, 91822, 100708, 125885, 183644, 201416, 229555, 251770, 367288, 459110, 503540, 780487, 918220, 1007080, 1560974, 1836440, 3121948, 3902435, 6243896, 7804870, 15609740, 31219480]

約数ペア:

[(1, 31219480), (2, 15609740), (4, 7804870), (5, 6243896), (8, 3902435), (10, 3121948), (17, 1836440), (20, 1560974), (31, 1007080), (34, 918220), (40, 780487), (62, 503540), (68, 459110), (85, 367288), (124, 251770), (136, 229555), (155, 201416), (170, 183644), (248, 125885), (310, 100708), (340, 91822), (527, 59240), (620, 50354), (680, 45911), (1054, 29620), (1240, 25177), (1481, 21080), (2108, 14810), (2635, 11848), (2962, 10540), (4216, 7405), (5270, 5924)]