20156042600

素因数分解:

$2^3\times 5^2\times {\mathrm{821}}^1\times {\mathrm{122753}}^1$

素因数の和:123590

約数の個数: 48

約数和(自身を含む): 46920261420

約数和(自身を除く): 26764218820

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 821, 1642, 3284, 4105, 6568, 8210, 16420, 20525, 32840, 41050, 82100, 122753, 164200, 245506, 491012, 613765, 982024, 1227530, 2455060, 3068825, 4910120, 6137650, 12275300, 24550600, 100780213, 201560426, 403120852, 503901065, 806241704, 1007802130, 2015604260, 2519505325, 4031208520, 5039010650, 10078021300, 20156042600]

約数ペア:

[(1, 20156042600), (2, 10078021300), (4, 5039010650), (5, 4031208520), (8, 2519505325), (10, 2015604260), (20, 1007802130), (25, 806241704), (40, 503901065), (50, 403120852), (100, 201560426), (200, 100780213), (821, 24550600), (1642, 12275300), (3284, 6137650), (4105, 4910120), (6568, 3068825), (8210, 2455060), (16420, 1227530), (20525, 982024), (32840, 613765), (41050, 491012), (82100, 245506), (122753, 164200)]