21704800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2087}}^1$

素因数の和:2120

約数の個数: 72

約数和(自身を含む): 57090096

約数和(自身を除く): 35385296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2087, 2600, 4174, 5200, 8348, 10400, 10435, 16696, 20870, 27131, 33392, 41740, 52175, 54262, 66784, 83480, 104350, 108524, 135655, 166960, 208700, 217048, 271310, 333920, 417400, 434096, 542620, 678275, 834800, 868192, 1085240, 1356550, 1669600, 2170480, 2713100, 4340960, 5426200, 10852400, 21704800]

約数ペア:

[(1, 21704800), (2, 10852400), (4, 5426200), (5, 4340960), (8, 2713100), (10, 2170480), (13, 1669600), (16, 1356550), (20, 1085240), (25, 868192), (26, 834800), (32, 678275), (40, 542620), (50, 434096), (52, 417400), (65, 333920), (80, 271310), (100, 217048), (104, 208700), (130, 166960), (160, 135655), (200, 108524), (208, 104350), (260, 83480), (325, 66784), (400, 54262), (416, 52175), (520, 41740), (650, 33392), (800, 27131), (1040, 20870), (1300, 16696), (2080, 10435), (2087, 10400), (2600, 8348), (4174, 5200)]