77191640

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7121}}^1$

素因数の和:7403

約数の個数: 32

約数和(自身を含む): 174346560

約数和(自身を除く): 97154920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 7121, 10840, 14242, 28484, 35605, 56968, 71210, 142420, 284840, 1929791, 3859582, 7719164, 9648955, 15438328, 19297910, 38595820, 77191640]

約数ペア:

[(1, 77191640), (2, 38595820), (4, 19297910), (5, 15438328), (8, 9648955), (10, 7719164), (20, 3859582), (40, 1929791), (271, 284840), (542, 142420), (1084, 71210), (1355, 56968), (2168, 35605), (2710, 28484), (5420, 14242), (7121, 10840)]