20038760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1213}}^1$

素因数の和:1290

約数の個数: 64

約数和(自身を含む): 52444800

約数和(自身を除く): 32406040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1213, 1652, 2065, 2360, 2426, 3304, 4130, 4852, 6065, 8260, 8491, 9704, 12130, 16520, 16982, 24260, 33964, 42455, 48520, 67928, 71567, 84910, 143134, 169820, 286268, 339640, 357835, 500969, 572536, 715670, 1001938, 1431340, 2003876, 2504845, 2862680, 4007752, 5009690, 10019380, 20038760]

約数ペア:

[(1, 20038760), (2, 10019380), (4, 5009690), (5, 4007752), (7, 2862680), (8, 2504845), (10, 2003876), (14, 1431340), (20, 1001938), (28, 715670), (35, 572536), (40, 500969), (56, 357835), (59, 339640), (70, 286268), (118, 169820), (140, 143134), (236, 84910), (280, 71567), (295, 67928), (413, 48520), (472, 42455), (590, 33964), (826, 24260), (1180, 16982), (1213, 16520), (1652, 12130), (2065, 9704), (2360, 8491), (2426, 8260), (3304, 6065), (4130, 4852)]