308157040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 732810240

約数和(自身を除く): 424653200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 227, 239, 284, 355, 454, 478, 568, 710, 908, 956, 1135, 1136, 1195, 1420, 1816, 1912, 2270, 2390, 2840, 3632, 3824, 4540, 4780, 5680, 9080, 9560, 16117, 16969, 18160, 19120, 32234, 33938, 54253, 64468, 67876, 80585, 84845, 108506, 128936, 135752, 161170, 169690, 217012, 257872, 271265, 271504, 322340, 339380, 434024, 542530, 644680, 678760, 868048, 1085060, 1289360, 1357520, 2170120, 3851963, 4340240, 7703926, 15407852, 19259815, 30815704, 38519630, 61631408, 77039260, 154078520, 308157040]

約数ペア:

[(1, 308157040), (2, 154078520), (4, 77039260), (5, 61631408), (8, 38519630), (10, 30815704), (16, 19259815), (20, 15407852), (40, 7703926), (71, 4340240), (80, 3851963), (142, 2170120), (227, 1357520), (239, 1289360), (284, 1085060), (355, 868048), (454, 678760), (478, 644680), (568, 542530), (710, 434024), (908, 339380), (956, 322340), (1135, 271504), (1136, 271265), (1195, 257872), (1420, 217012), (1816, 169690), (1912, 161170), (2270, 135752), (2390, 128936), (2840, 108506), (3632, 84845), (3824, 80585), (4540, 67876), (4780, 64468), (5680, 54253), (9080, 33938), (9560, 32234), (16117, 19120), (16969, 18160)]