161477260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7741}}^1$

素因数の和:7906

約数の個数: 48

約数和(自身を含む): 390196800

約数和(自身を除く): 228719540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 7741, 10430, 15482, 20860, 30964, 38705, 54187, 77410, 108374, 154820, 216748, 270935, 541870, 1083740, 1153409, 2306818, 4613636, 5767045, 8073863, 11534090, 16147726, 23068180, 32295452, 40369315, 80738630, 161477260]

約数ペア:

[(1, 161477260), (2, 80738630), (4, 40369315), (5, 32295452), (7, 23068180), (10, 16147726), (14, 11534090), (20, 8073863), (28, 5767045), (35, 4613636), (70, 2306818), (140, 1153409), (149, 1083740), (298, 541870), (596, 270935), (745, 216748), (1043, 154820), (1490, 108374), (2086, 77410), (2980, 54187), (4172, 38705), (5215, 30964), (7741, 20860), (10430, 15482)]