156543640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5011}}^1$

素因数の和:5104

約数の個数: 64

約数和(自身を含む): 389733120

約数和(自身を除く): 233189480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 5011, 6248, 7810, 10022, 15620, 20044, 25055, 31240, 40088, 50110, 55121, 100220, 110242, 200440, 220484, 275605, 355781, 440968, 551210, 711562, 1102420, 1423124, 1778905, 2204840, 2846248, 3557810, 3913591, 7115620, 7827182, 14231240, 15654364, 19567955, 31308728, 39135910, 78271820, 156543640]

約数ペア:

[(1, 156543640), (2, 78271820), (4, 39135910), (5, 31308728), (8, 19567955), (10, 15654364), (11, 14231240), (20, 7827182), (22, 7115620), (40, 3913591), (44, 3557810), (55, 2846248), (71, 2204840), (88, 1778905), (110, 1423124), (142, 1102420), (220, 711562), (284, 551210), (355, 440968), (440, 355781), (568, 275605), (710, 220484), (781, 200440), (1420, 110242), (1562, 100220), (2840, 55121), (3124, 50110), (3905, 40088), (5011, 31240), (6248, 25055), (7810, 20044), (10022, 15620)]