639714872

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{607}}^1\times {\mathrm{1279}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 1214054400

約数和(自身を除く): 574339528

約数列:

[1, 2, 4, 8, 103, 206, 412, 607, 824, 1214, 1279, 2428, 2558, 4856, 5116, 10232, 62521, 125042, 131737, 250084, 263474, 500168, 526948, 776353, 1053896, 1552706, 3105412, 6210824, 79964359, 159928718, 319857436, 639714872]

約数ペア:

[(1, 639714872), (2, 319857436), (4, 159928718), (8, 79964359), (103, 6210824), (206, 3105412), (412, 1552706), (607, 1053896), (824, 776353), (1214, 526948), (1279, 500168), (2428, 263474), (2558, 250084), (4856, 131737), (5116, 125042), (10232, 62521)]