31987180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 69120576

約数和(自身を除く): 37133396

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 167, 244, 305, 314, 334, 610, 628, 668, 785, 835, 1220, 1570, 1670, 3140, 3340, 9577, 10187, 19154, 20374, 26219, 38308, 40748, 47885, 50935, 52438, 95770, 101870, 104876, 131095, 191540, 203740, 262190, 524380, 1599359, 3198718, 6397436, 7996795, 15993590, 31987180]

約数ペア:

[(1, 31987180), (2, 15993590), (4, 7996795), (5, 6397436), (10, 3198718), (20, 1599359), (61, 524380), (122, 262190), (157, 203740), (167, 191540), (244, 131095), (305, 104876), (314, 101870), (334, 95770), (610, 52438), (628, 50935), (668, 47885), (785, 40748), (835, 38308), (1220, 26219), (1570, 20374), (1670, 19154), (3140, 10187), (3340, 9577)]