1261236490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1\times {\mathrm{1979}}^1$

素因数の和:2718

約数の個数: 32

約数和(自身を含む): 2297496960

約数和(自身を除く): 1036260470

約数列:

[1, 2, 5, 10, 101, 202, 505, 631, 1010, 1262, 1979, 3155, 3958, 6310, 9895, 19790, 63731, 127462, 199879, 318655, 399758, 637310, 999395, 1248749, 1998790, 2497498, 6243745, 12487490, 126123649, 252247298, 630618245, 1261236490]

約数ペア:

[(1, 1261236490), (2, 630618245), (5, 252247298), (10, 126123649), (101, 12487490), (202, 6243745), (505, 2497498), (631, 1998790), (1010, 1248749), (1262, 999395), (1979, 637310), (3155, 399758), (3958, 318655), (6310, 199879), (9895, 127462), (19790, 63731)]