1271240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 2912760

約数和(自身を除く): 1641520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 521, 610, 1042, 1220, 2084, 2440, 2605, 4168, 5210, 10420, 20840, 31781, 63562, 127124, 158905, 254248, 317810, 635620, 1271240]

約数ペア:

[(1, 1271240), (2, 635620), (4, 317810), (5, 254248), (8, 158905), (10, 127124), (20, 63562), (40, 31781), (61, 20840), (122, 10420), (244, 5210), (305, 4168), (488, 2605), (521, 2440), (610, 2084), (1042, 1220)]