31000940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 66830400

約数和(自身を除く): 35829460

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 149, 202, 206, 298, 404, 412, 505, 515, 596, 745, 1010, 1030, 1490, 2020, 2060, 2980, 10403, 15049, 15347, 20806, 30098, 30694, 41612, 52015, 60196, 61388, 75245, 76735, 104030, 150490, 153470, 208060, 300980, 306940, 1550047, 3100094, 6200188, 7750235, 15500470, 31000940]

約数ペア:

[(1, 31000940), (2, 15500470), (4, 7750235), (5, 6200188), (10, 3100094), (20, 1550047), (101, 306940), (103, 300980), (149, 208060), (202, 153470), (206, 150490), (298, 104030), (404, 76735), (412, 75245), (505, 61388), (515, 60196), (596, 52015), (745, 41612), (1010, 30694), (1030, 30098), (1490, 20806), (2020, 15347), (2060, 15049), (2980, 10403)]