309190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{631}}^1$

素因数の和:652

約数の個数: 24

約数和(自身を含む): 648432

約数和(自身を除く): 339242

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 631, 1262, 3155, 4417, 6310, 8834, 22085, 30919, 44170, 61838, 154595, 309190]

約数ペア:

[(1, 309190), (2, 154595), (5, 61838), (7, 44170), (10, 30919), (14, 22085), (35, 8834), (49, 6310), (70, 4417), (98, 3155), (245, 1262), (490, 631)]