1330249880

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{40507}}^1$

素因数の和:41339

約数の個数: 32

約数和(自身を含む): 2996781840

約数和(自身を除く): 1666531960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6568, 8210, 16420, 32840, 40507, 81014, 162028, 202535, 324056, 405070, 810140, 1620280, 33256247, 66512494, 133024988, 166281235, 266049976, 332562470, 665124940, 1330249880]

約数ペア:

[(1, 1330249880), (2, 665124940), (4, 332562470), (5, 266049976), (8, 166281235), (10, 133024988), (20, 66512494), (40, 33256247), (821, 1620280), (1642, 810140), (3284, 405070), (4105, 324056), (6568, 202535), (8210, 162028), (16420, 81014), (32840, 40507)]