12998920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1006

約数の個数: 64

約数和(自身を含む): 32970240

約数和(自身を除く): 19971320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 953, 1240, 1364, 1705, 1906, 2728, 3410, 3812, 4765, 6820, 7624, 9530, 10483, 13640, 19060, 20966, 29543, 38120, 41932, 52415, 59086, 83864, 104830, 118172, 147715, 209660, 236344, 295430, 324973, 419320, 590860, 649946, 1181720, 1299892, 1624865, 2599784, 3249730, 6499460, 12998920]

約数ペア:

[(1, 12998920), (2, 6499460), (4, 3249730), (5, 2599784), (8, 1624865), (10, 1299892), (11, 1181720), (20, 649946), (22, 590860), (31, 419320), (40, 324973), (44, 295430), (55, 236344), (62, 209660), (88, 147715), (110, 118172), (124, 104830), (155, 83864), (220, 59086), (248, 52415), (310, 41932), (341, 38120), (440, 29543), (620, 20966), (682, 19060), (953, 13640), (1240, 10483), (1364, 9530), (1705, 7624), (1906, 6820), (2728, 4765), (3410, 3812)]