25707820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 56010528

約数和(自身を除く): 30302708

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 107, 164, 205, 214, 293, 410, 428, 535, 586, 820, 1070, 1172, 1465, 2140, 2930, 4387, 5860, 8774, 12013, 17548, 21935, 24026, 31351, 43870, 48052, 60065, 62702, 87740, 120130, 125404, 156755, 240260, 313510, 627020, 1285391, 2570782, 5141564, 6426955, 12853910, 25707820]

約数ペア:

[(1, 25707820), (2, 12853910), (4, 6426955), (5, 5141564), (10, 2570782), (20, 1285391), (41, 627020), (82, 313510), (107, 240260), (164, 156755), (205, 125404), (214, 120130), (293, 87740), (410, 62702), (428, 60065), (535, 48052), (586, 43870), (820, 31351), (1070, 24026), (1172, 21935), (1465, 17548), (2140, 12013), (2930, 8774), (4387, 5860)]