1257980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2029}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 2728320

約数和(自身を除く): 1470340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2029, 4058, 8116, 10145, 20290, 40580, 62899, 125798, 251596, 314495, 628990, 1257980]

約数ペア:

[(1, 1257980), (2, 628990), (4, 314495), (5, 251596), (10, 125798), (20, 62899), (31, 40580), (62, 20290), (124, 10145), (155, 8116), (310, 4058), (620, 2029)]