639961553090

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{5081}}^1\times {\mathrm{40499}}^1$

素因数の和:45898

約数の個数: 32

約数和(自身を含む): 1155890736000

約数和(自身を除く): 515929182910

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 5081, 10162, 25405, 40499, 50810, 80998, 202495, 404990, 1580191, 3160382, 7900955, 12595189, 15801910, 25190378, 62975945, 125951890, 205775419, 411550838, 1028877095, 2057754190, 63996155309, 127992310618, 319980776545, 639961553090]

約数ペア:

[(1, 639961553090), (2, 319980776545), (5, 127992310618), (10, 63996155309), (311, 2057754190), (622, 1028877095), (1555, 411550838), (3110, 205775419), (5081, 125951890), (10162, 62975945), (25405, 25190378), (40499, 15801910), (50810, 12595189), (80998, 7900955), (202495, 3160382), (404990, 1580191)]