71427340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 153990144

約数和(自身を除く): 82562804

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 305, 461, 508, 610, 635, 922, 1220, 1270, 1844, 2305, 2540, 4610, 7747, 9220, 15494, 28121, 30988, 38735, 56242, 58547, 77470, 112484, 117094, 140605, 154940, 234188, 281210, 292735, 562420, 585470, 1170940, 3571367, 7142734, 14285468, 17856835, 35713670, 71427340]

約数ペア:

[(1, 71427340), (2, 35713670), (4, 17856835), (5, 14285468), (10, 7142734), (20, 3571367), (61, 1170940), (122, 585470), (127, 562420), (244, 292735), (254, 281210), (305, 234188), (461, 154940), (508, 140605), (610, 117094), (635, 112484), (922, 77470), (1220, 58547), (1270, 56242), (1844, 38735), (2305, 30988), (2540, 28121), (4610, 15494), (7747, 9220)]