2920940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 7239456

約数和(自身を除く): 4318516

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 71, 85, 110, 121, 142, 170, 187, 220, 242, 284, 340, 355, 374, 484, 605, 710, 748, 781, 935, 1207, 1210, 1420, 1562, 1870, 2057, 2414, 2420, 3124, 3740, 3905, 4114, 4828, 6035, 7810, 8228, 8591, 10285, 12070, 13277, 15620, 17182, 20570, 24140, 26554, 34364, 41140, 42955, 53108, 66385, 85910, 132770, 146047, 171820, 265540, 292094, 584188, 730235, 1460470, 2920940]

約数ペア:

[(1, 2920940), (2, 1460470), (4, 730235), (5, 584188), (10, 292094), (11, 265540), (17, 171820), (20, 146047), (22, 132770), (34, 85910), (44, 66385), (55, 53108), (68, 42955), (71, 41140), (85, 34364), (110, 26554), (121, 24140), (142, 20570), (170, 17182), (187, 15620), (220, 13277), (242, 12070), (284, 10285), (340, 8591), (355, 8228), (374, 7810), (484, 6035), (605, 4828), (710, 4114), (748, 3905), (781, 3740), (935, 3124), (1207, 2420), (1210, 2414), (1420, 2057), (1562, 1870)]