889331380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{907481}}^1$

素因数の和:907504

約数の個数: 36

約数和(自身を含む): 2172511908

約数和(自身を除く): 1283180528

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 907481, 1814962, 3629924, 4537405, 6352367, 9074810, 12704734, 18149620, 25409468, 31761835, 44466569, 63523670, 88933138, 127047340, 177866276, 222332845, 444665690, 889331380]

約数ペア:

[(1, 889331380), (2, 444665690), (4, 222332845), (5, 177866276), (7, 127047340), (10, 88933138), (14, 63523670), (20, 44466569), (28, 31761835), (35, 25409468), (49, 18149620), (70, 12704734), (98, 9074810), (140, 6352367), (196, 4537405), (245, 3629924), (490, 1814962), (980, 907481)]