916240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:907

約数の個数: 40

約数和(自身を含む): 2296728

約数和(自身を除く): 1380488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 881, 1040, 1762, 3524, 4405, 7048, 8810, 11453, 14096, 17620, 22906, 35240, 45812, 57265, 70480, 91624, 114530, 183248, 229060, 458120, 916240]

約数ペア:

[(1, 916240), (2, 458120), (4, 229060), (5, 183248), (8, 114530), (10, 91624), (13, 70480), (16, 57265), (20, 45812), (26, 35240), (40, 22906), (52, 17620), (65, 14096), (80, 11453), (104, 8810), (130, 7048), (208, 4405), (260, 3524), (520, 1762), (881, 1040)]