1291978810

素因数分解:

$2^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{204751}}^1$

素因数の和:205389

約数の個数: 16

約数和(自身を含む): 2329258752

約数和(自身を除く): 1037279942

約数列:

[1, 2, 5, 10, 631, 1262, 3155, 6310, 204751, 409502, 1023755, 2047510, 129197881, 258395762, 645989405, 1291978810]

約数ペア:

[(1, 1291978810), (2, 645989405), (5, 258395762), (10, 129197881), (631, 2047510), (1262, 1023755), (3155, 409502), (6310, 204751)]