410150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:656

約数の個数: 24

約数和(自身を含む): 822864

約数和(自身を除く): 412714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 631, 650, 1262, 3155, 6310, 8203, 15775, 16406, 31550, 41015, 82030, 205075, 410150]

約数ペア:

[(1, 410150), (2, 205075), (5, 82030), (10, 41015), (13, 31550), (25, 16406), (26, 15775), (50, 8203), (65, 6310), (130, 3155), (325, 1262), (631, 650)]