217658540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{3121}}^1$

素因数の和:3458

約数の個数: 48

約数和(自身を含む): 500369184

約数和(自身を除く): 282710644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 317, 634, 1268, 1585, 3121, 3170, 3487, 6242, 6340, 6974, 12484, 13948, 15605, 17435, 31210, 34331, 34870, 62420, 68662, 69740, 137324, 171655, 343310, 686620, 989357, 1978714, 3957428, 4946785, 9893570, 10882927, 19787140, 21765854, 43531708, 54414635, 108829270, 217658540]

約数ペア:

[(1, 217658540), (2, 108829270), (4, 54414635), (5, 43531708), (10, 21765854), (11, 19787140), (20, 10882927), (22, 9893570), (44, 4946785), (55, 3957428), (110, 1978714), (220, 989357), (317, 686620), (634, 343310), (1268, 171655), (1585, 137324), (3121, 69740), (3170, 68662), (3487, 62420), (6242, 34870), (6340, 34331), (6974, 31210), (12484, 17435), (13948, 15605)]