156701740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31721}}^1$

素因数の和:31762

約数の個数: 48

約数和(自身を含む): 373050720

約数和(自身を除く): 216348980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 31721, 63442, 126884, 158605, 317210, 412373, 602699, 634420, 824746, 1205398, 1649492, 2061865, 2410796, 3013495, 4123730, 6026990, 7835087, 8247460, 12053980, 15670174, 31340348, 39175435, 78350870, 156701740]

約数ペア:

[(1, 156701740), (2, 78350870), (4, 39175435), (5, 31340348), (10, 15670174), (13, 12053980), (19, 8247460), (20, 7835087), (26, 6026990), (38, 4123730), (52, 3013495), (65, 2410796), (76, 2061865), (95, 1649492), (130, 1205398), (190, 824746), (247, 634420), (260, 602699), (380, 412373), (494, 317210), (988, 158605), (1235, 126884), (2470, 63442), (4940, 31721)]