448240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 1124928

約数和(自身を除く): 676688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 431, 520, 862, 1040, 1724, 2155, 3448, 4310, 5603, 6896, 8620, 11206, 17240, 22412, 28015, 34480, 44824, 56030, 89648, 112060, 224120, 448240]

約数ペア:

[(1, 448240), (2, 224120), (4, 112060), (5, 89648), (8, 56030), (10, 44824), (13, 34480), (16, 28015), (20, 22412), (26, 17240), (40, 11206), (52, 8620), (65, 6896), (80, 5603), (104, 4310), (130, 3448), (208, 2155), (260, 1724), (431, 1040), (520, 862)]