66351640

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6121}}^1$

素因数の和:6403

約数の個数: 32

約数和(自身を含む): 149866560

約数和(自身を除く): 83514920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 6121, 10840, 12242, 24484, 30605, 48968, 61210, 122420, 244840, 1658791, 3317582, 6635164, 8293955, 13270328, 16587910, 33175820, 66351640]

約数ペア:

[(1, 66351640), (2, 33175820), (4, 16587910), (5, 13270328), (8, 8293955), (10, 6635164), (20, 3317582), (40, 1658791), (271, 244840), (542, 122420), (1084, 61210), (1355, 48968), (2168, 30605), (2710, 24484), (5420, 12242), (6121, 10840)]