128576760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82421}}^1$

素因数の和:82448

約数の個数: 64

約数和(自身を含む): 415406880

約数和(自身を除く): 286830120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 82421, 164842, 247263, 329684, 412105, 494526, 659368, 824210, 989052, 1071473, 1236315, 1648420, 1978104, 2142946, 2472630, 3214419, 3296840, 4285892, 4945260, 5357365, 6428838, 8571784, 9890520, 10714730, 12857676, 16072095, 21429460, 25715352, 32144190, 42858920, 64288380, 128576760]

約数ペア:

[(1, 128576760), (2, 64288380), (3, 42858920), (4, 32144190), (5, 25715352), (6, 21429460), (8, 16072095), (10, 12857676), (12, 10714730), (13, 9890520), (15, 8571784), (20, 6428838), (24, 5357365), (26, 4945260), (30, 4285892), (39, 3296840), (40, 3214419), (52, 2472630), (60, 2142946), (65, 1978104), (78, 1648420), (104, 1236315), (120, 1071473), (130, 989052), (156, 824210), (195, 659368), (260, 494526), (312, 412105), (390, 329684), (520, 247263), (780, 164842), (1560, 82421)]