210308540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1621}}^1$

素因数の和:2142

約数の個数: 48

約数和(自身を含む): 476868000

約数和(自身を除く): 266559460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 499, 998, 1621, 1996, 2495, 3242, 4990, 6484, 6487, 8105, 9980, 12974, 16210, 21073, 25948, 32420, 32435, 42146, 64870, 84292, 105365, 129740, 210730, 421460, 808879, 1617758, 3235516, 4044395, 8088790, 10515427, 16177580, 21030854, 42061708, 52577135, 105154270, 210308540]

約数ペア:

[(1, 210308540), (2, 105154270), (4, 52577135), (5, 42061708), (10, 21030854), (13, 16177580), (20, 10515427), (26, 8088790), (52, 4044395), (65, 3235516), (130, 1617758), (260, 808879), (499, 421460), (998, 210730), (1621, 129740), (1996, 105365), (2495, 84292), (3242, 64870), (4990, 42146), (6484, 32435), (6487, 32420), (8105, 25948), (9980, 21073), (12974, 16210)]