820640

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 2032128

約数和(自身を除く): 1211488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 223, 230, 368, 446, 460, 736, 892, 920, 1115, 1784, 1840, 2230, 3568, 3680, 4460, 5129, 7136, 8920, 10258, 17840, 20516, 25645, 35680, 41032, 51290, 82064, 102580, 164128, 205160, 410320, 820640]

約数ペア:

[(1, 820640), (2, 410320), (4, 205160), (5, 164128), (8, 102580), (10, 82064), (16, 51290), (20, 41032), (23, 35680), (32, 25645), (40, 20516), (46, 17840), (80, 10258), (92, 8920), (115, 7136), (160, 5129), (184, 4460), (223, 3680), (230, 3568), (368, 2230), (446, 1840), (460, 1784), (736, 1115), (892, 920)]