20189800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^2$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 49396950

約数和(自身を除く): 29207150

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 59, 100, 116, 118, 145, 200, 232, 236, 290, 295, 472, 580, 590, 725, 1160, 1180, 1450, 1475, 1711, 2360, 2900, 2950, 3422, 3481, 5800, 5900, 6844, 6962, 8555, 11800, 13688, 13924, 17110, 17405, 27848, 34220, 34810, 42775, 68440, 69620, 85550, 87025, 100949, 139240, 171100, 174050, 201898, 342200, 348100, 403796, 504745, 696200, 807592, 1009490, 2018980, 2523725, 4037960, 5047450, 10094900, 20189800]

約数ペア:

[(1, 20189800), (2, 10094900), (4, 5047450), (5, 4037960), (8, 2523725), (10, 2018980), (20, 1009490), (25, 807592), (29, 696200), (40, 504745), (50, 403796), (58, 348100), (59, 342200), (100, 201898), (116, 174050), (118, 171100), (145, 139240), (200, 100949), (232, 87025), (236, 85550), (290, 69620), (295, 68440), (472, 42775), (580, 34810), (590, 34220), (725, 27848), (1160, 17405), (1180, 17110), (1450, 13924), (1475, 13688), (1711, 11800), (2360, 8555), (2900, 6962), (2950, 6844), (3422, 5900), (3481, 5800)]