205127620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{887}}^1$

素因数の和:1300

約数の個数: 48

約数和(自身を含む): 446358528

約数和(自身を除く): 241230908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 373, 620, 746, 887, 1492, 1774, 1865, 3548, 3730, 4435, 7460, 8870, 11563, 17740, 23126, 27497, 46252, 54994, 57815, 109988, 115630, 137485, 231260, 274970, 330851, 549940, 661702, 1323404, 1654255, 3308510, 6617020, 10256381, 20512762, 41025524, 51281905, 102563810, 205127620]

約数ペア:

[(1, 205127620), (2, 102563810), (4, 51281905), (5, 41025524), (10, 20512762), (20, 10256381), (31, 6617020), (62, 3308510), (124, 1654255), (155, 1323404), (310, 661702), (373, 549940), (620, 330851), (746, 274970), (887, 231260), (1492, 137485), (1774, 115630), (1865, 109988), (3548, 57815), (3730, 54994), (4435, 46252), (7460, 27497), (8870, 23126), (11563, 17740)]