28513520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{863}}^1$

素因数の和:942

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 48624400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 80, 112, 118, 140, 236, 280, 295, 413, 472, 560, 590, 826, 863, 944, 1180, 1652, 1726, 2065, 2360, 3304, 3452, 4130, 4315, 4720, 6041, 6608, 6904, 8260, 8630, 12082, 13808, 16520, 17260, 24164, 30205, 33040, 34520, 48328, 50917, 60410, 69040, 96656, 101834, 120820, 203668, 241640, 254585, 356419, 407336, 483280, 509170, 712838, 814672, 1018340, 1425676, 1782095, 2036680, 2851352, 3564190, 4073360, 5702704, 7128380, 14256760, 28513520]

約数ペア:

[(1, 28513520), (2, 14256760), (4, 7128380), (5, 5702704), (7, 4073360), (8, 3564190), (10, 2851352), (14, 2036680), (16, 1782095), (20, 1425676), (28, 1018340), (35, 814672), (40, 712838), (56, 509170), (59, 483280), (70, 407336), (80, 356419), (112, 254585), (118, 241640), (140, 203668), (236, 120820), (280, 101834), (295, 96656), (413, 69040), (472, 60410), (560, 50917), (590, 48328), (826, 34520), (863, 33040), (944, 30205), (1180, 24164), (1652, 17260), (1726, 16520), (2065, 13808), (2360, 12082), (3304, 8630), (3452, 8260), (4130, 6904), (4315, 6608), (4720, 6041)]