199060420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{1999}}^1$

素因数の和:2404

約数の個数: 48

約数和(自身を含む): 451584000

約数和(自身を除く): 252523580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 383, 766, 1532, 1915, 1999, 3830, 3998, 4979, 7660, 7996, 9958, 9995, 19916, 19990, 24895, 25987, 39980, 49790, 51974, 99580, 103948, 129935, 259870, 519740, 765617, 1531234, 3062468, 3828085, 7656170, 9953021, 15312340, 19906042, 39812084, 49765105, 99530210, 199060420]

約数ペア:

[(1, 199060420), (2, 99530210), (4, 49765105), (5, 39812084), (10, 19906042), (13, 15312340), (20, 9953021), (26, 7656170), (52, 3828085), (65, 3062468), (130, 1531234), (260, 765617), (383, 519740), (766, 259870), (1532, 129935), (1915, 103948), (1999, 99580), (3830, 51974), (3998, 49790), (4979, 39980), (7660, 25987), (7996, 24895), (9958, 19990), (9995, 19916)]