640109754

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{271463}}^1$

素因数の和:271602

約数の個数: 24

約数和(自身を含む): 1397496672

約数和(自身を除く): 757386918

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 271463, 542926, 814389, 1628778, 2443167, 4886334, 35561653, 71123306, 106684959, 213369918, 320054877, 640109754]

約数ペア:

[(1, 640109754), (2, 320054877), (3, 213369918), (6, 106684959), (9, 71123306), (18, 35561653), (131, 4886334), (262, 2443167), (393, 1628778), (786, 814389), (1179, 542926), (2358, 271463)]