20293240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2713}}^1$

素因数の和:2752

約数の個数: 64

約数和(自身を含む): 52760160

約数和(自身を除く): 32466920

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2713, 3740, 5426, 7480, 10852, 13565, 21704, 27130, 29843, 46121, 54260, 59686, 92242, 108520, 119372, 149215, 184484, 230605, 238744, 298430, 368968, 461210, 507331, 596860, 922420, 1014662, 1193720, 1844840, 2029324, 2536655, 4058648, 5073310, 10146620, 20293240]

約数ペア:

[(1, 20293240), (2, 10146620), (4, 5073310), (5, 4058648), (8, 2536655), (10, 2029324), (11, 1844840), (17, 1193720), (20, 1014662), (22, 922420), (34, 596860), (40, 507331), (44, 461210), (55, 368968), (68, 298430), (85, 238744), (88, 230605), (110, 184484), (136, 149215), (170, 119372), (187, 108520), (220, 92242), (340, 59686), (374, 54260), (440, 46121), (680, 29843), (748, 27130), (935, 21704), (1496, 13565), (1870, 10852), (2713, 7480), (3740, 5426)]