3917980

素因数分解:

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

素因数の和:1650

約数の個数: 36

約数和(自身を含む): 9049320

約数和(自身を除く): 5131340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1619, 2420, 3238, 6476, 8095, 16190, 17809, 32380, 35618, 71236, 89045, 178090, 195899, 356180, 391798, 783596, 979495, 1958990, 3917980]

約数ペア:

[(1, 3917980), (2, 1958990), (4, 979495), (5, 783596), (10, 391798), (11, 356180), (20, 195899), (22, 178090), (44, 89045), (55, 71236), (110, 35618), (121, 32380), (220, 17809), (242, 16190), (484, 8095), (605, 6476), (1210, 3238), (1619, 2420)]