21876160

素因数分解:

$2^6\times 5^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:653

約数の個数: 56

約数和(自身を含む): 52578000

約数和(自身を除く): 30701840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 137, 160, 274, 320, 499, 548, 685, 998, 1096, 1370, 1996, 2192, 2495, 2740, 3992, 4384, 4990, 5480, 7984, 8768, 9980, 10960, 15968, 19960, 21920, 31936, 39920, 43840, 68363, 79840, 136726, 159680, 273452, 341815, 546904, 683630, 1093808, 1367260, 2187616, 2734520, 4375232, 5469040, 10938080, 21876160]

約数ペア:

[(1, 21876160), (2, 10938080), (4, 5469040), (5, 4375232), (8, 2734520), (10, 2187616), (16, 1367260), (20, 1093808), (32, 683630), (40, 546904), (64, 341815), (80, 273452), (137, 159680), (160, 136726), (274, 79840), (320, 68363), (499, 43840), (548, 39920), (685, 31936), (998, 21920), (1096, 19960), (1370, 15968), (1996, 10960), (2192, 9980), (2495, 8768), (2740, 7984), (3992, 5480), (4384, 4990)]