640940498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{300347}}^1$

素因数の和:300457

約数の個数: 16

約数和(自身を含む): 1059627744

約数和(自身を除く): 418687246

約数列:

[1, 2, 11, 22, 97, 194, 1067, 2134, 300347, 600694, 3303817, 6607634, 29133659, 58267318, 320470249, 640940498]

約数ペア:

[(1, 640940498), (2, 320470249), (11, 58267318), (22, 29133659), (97, 6607634), (194, 3303817), (1067, 600694), (2134, 300347)]