255737980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{1607}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 549743040

約数和(自身を除く): 294005060

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 365, 436, 545, 730, 1090, 1460, 1607, 2180, 3214, 6428, 7957, 8035, 15914, 16070, 31828, 32140, 39785, 79570, 117311, 159140, 175163, 234622, 350326, 469244, 586555, 700652, 875815, 1173110, 1751630, 2346220, 3503260, 12786899, 25573798, 51147596, 63934495, 127868990, 255737980]

約数ペア:

[(1, 255737980), (2, 127868990), (4, 63934495), (5, 51147596), (10, 25573798), (20, 12786899), (73, 3503260), (109, 2346220), (146, 1751630), (218, 1173110), (292, 875815), (365, 700652), (436, 586555), (545, 469244), (730, 350326), (1090, 234622), (1460, 175163), (1607, 159140), (2180, 117311), (3214, 79570), (6428, 39785), (7957, 32140), (8035, 31828), (15914, 16070)]