42072420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53939}}^1$

素因数の和:53964

約数の個数: 48

約数和(自身を含む): 126866880

約数和(自身を除く): 84794460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 53939, 107878, 161817, 215756, 269695, 323634, 539390, 647268, 701207, 809085, 1078780, 1402414, 1618170, 2103621, 2804828, 3236340, 3506035, 4207242, 7012070, 8414484, 10518105, 14024140, 21036210, 42072420]

約数ペア:

[(1, 42072420), (2, 21036210), (3, 14024140), (4, 10518105), (5, 8414484), (6, 7012070), (10, 4207242), (12, 3506035), (13, 3236340), (15, 2804828), (20, 2103621), (26, 1618170), (30, 1402414), (39, 1078780), (52, 809085), (60, 701207), (65, 647268), (78, 539390), (130, 323634), (156, 269695), (195, 215756), (260, 161817), (390, 107878), (780, 53939)]