420139820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{9923}}^1$

素因数の和:10034

約数の個数: 48

約数和(自身を含む): 925313760

約数和(自身を除く): 505173940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 730, 1460, 2117, 4234, 8468, 9923, 10585, 19846, 21170, 39692, 42340, 49615, 99230, 198460, 287767, 575534, 724379, 1151068, 1438835, 1448758, 2877670, 2897516, 3621895, 5755340, 7243790, 14487580, 21006991, 42013982, 84027964, 105034955, 210069910, 420139820]

約数ペア:

[(1, 420139820), (2, 210069910), (4, 105034955), (5, 84027964), (10, 42013982), (20, 21006991), (29, 14487580), (58, 7243790), (73, 5755340), (116, 3621895), (145, 2897516), (146, 2877670), (290, 1448758), (292, 1438835), (365, 1151068), (580, 724379), (730, 575534), (1460, 287767), (2117, 198460), (4234, 99230), (8468, 49615), (9923, 42340), (10585, 39692), (19846, 21170)]