20687688800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{834181}}^1$

素因数の和:834232

約数の個数: 72

約数和(自身を含む): 52133038272

約数和(自身を除く): 31445349472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 992, 1240, 1550, 2480, 3100, 4960, 6200, 12400, 24800, 834181, 1668362, 3336724, 4170905, 6673448, 8341810, 13346896, 16683620, 20854525, 25859611, 26693792, 33367240, 41709050, 51719222, 66734480, 83418100, 103438444, 129298055, 133468960, 166836200, 206876888, 258596110, 333672400, 413753776, 517192220, 646490275, 667344800, 827507552, 1034384440, 1292980550, 2068768880, 2585961100, 4137537760, 5171922200, 10343844400, 20687688800]

約数ペア:

[(1, 20687688800), (2, 10343844400), (4, 5171922200), (5, 4137537760), (8, 2585961100), (10, 2068768880), (16, 1292980550), (20, 1034384440), (25, 827507552), (31, 667344800), (32, 646490275), (40, 517192220), (50, 413753776), (62, 333672400), (80, 258596110), (100, 206876888), (124, 166836200), (155, 133468960), (160, 129298055), (200, 103438444), (248, 83418100), (310, 66734480), (400, 51719222), (496, 41709050), (620, 33367240), (775, 26693792), (800, 25859611), (992, 20854525), (1240, 16683620), (1550, 13346896), (2480, 8341810), (3100, 6673448), (4960, 4170905), (6200, 3336724), (12400, 1668362), (24800, 834181)]