71637980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3557}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 161390880

約数和(自身を除く): 89752900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 3557, 4028, 5035, 7114, 10070, 14228, 17785, 20140, 35570, 67583, 71140, 135166, 188521, 270332, 337915, 377042, 675830, 754084, 942605, 1351660, 1885210, 3581899, 3770420, 7163798, 14327596, 17909495, 35818990, 71637980]

約数ペア:

[(1, 71637980), (2, 35818990), (4, 17909495), (5, 14327596), (10, 7163798), (19, 3770420), (20, 3581899), (38, 1885210), (53, 1351660), (76, 942605), (95, 754084), (106, 675830), (190, 377042), (212, 337915), (265, 270332), (380, 188521), (530, 135166), (1007, 71140), (1060, 67583), (2014, 35570), (3557, 20140), (4028, 17785), (5035, 14228), (7114, 10070)]