131267680

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8123}}^1$

素因数の和:8239

約数の個数: 48

約数和(自身を含む): 313228944

約数和(自身を除く): 181961264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 8080, 8123, 16160, 16246, 32492, 40615, 64984, 81230, 129968, 162460, 259936, 324920, 649840, 820423, 1299680, 1640846, 3281692, 4102115, 6563384, 8204230, 13126768, 16408460, 26253536, 32816920, 65633840, 131267680]

約数ペア:

[(1, 131267680), (2, 65633840), (4, 32816920), (5, 26253536), (8, 16408460), (10, 13126768), (16, 8204230), (20, 6563384), (32, 4102115), (40, 3281692), (80, 1640846), (101, 1299680), (160, 820423), (202, 649840), (404, 324920), (505, 259936), (808, 162460), (1010, 129968), (1616, 81230), (2020, 64984), (3232, 40615), (4040, 32492), (8080, 16246), (8123, 16160)]