15671920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1619}}^1$

素因数の和:1654

約数の個数: 60

約数和(自身を含む): 40075560

約数和(自身を除く): 24403640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1619, 1936, 2420, 3238, 4840, 6476, 8095, 9680, 12952, 16190, 17809, 25904, 32380, 35618, 64760, 71236, 89045, 129520, 142472, 178090, 195899, 284944, 356180, 391798, 712360, 783596, 979495, 1424720, 1567192, 1958990, 3134384, 3917980, 7835960, 15671920]

約数ペア:

[(1, 15671920), (2, 7835960), (4, 3917980), (5, 3134384), (8, 1958990), (10, 1567192), (11, 1424720), (16, 979495), (20, 783596), (22, 712360), (40, 391798), (44, 356180), (55, 284944), (80, 195899), (88, 178090), (110, 142472), (121, 129520), (176, 89045), (220, 71236), (242, 64760), (440, 35618), (484, 32380), (605, 25904), (880, 17809), (968, 16190), (1210, 12952), (1619, 9680), (1936, 8095), (2420, 6476), (3238, 4840)]