157821320

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{7573}}^1$

素因数の和:8105

約数の個数: 32

約数和(自身を含む): 355826520

約数和(自身を除く): 198005200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 7573, 10420, 15146, 20840, 30292, 37865, 60584, 75730, 151460, 302920, 3945533, 7891066, 15782132, 19727665, 31564264, 39455330, 78910660, 157821320]

約数ペア:

[(1, 157821320), (2, 78910660), (4, 39455330), (5, 31564264), (8, 19727665), (10, 15782132), (20, 7891066), (40, 3945533), (521, 302920), (1042, 151460), (2084, 75730), (2605, 60584), (4168, 37865), (5210, 30292), (7573, 20840), (10420, 15146)]