28071880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17117}}^1$

素因数の和:17169

約数の個数: 32

約数和(自身を含む): 64706040

約数和(自身を除く): 36634160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17117, 34234, 68468, 85585, 136936, 171170, 342340, 684680, 701797, 1403594, 2807188, 3508985, 5614376, 7017970, 14035940, 28071880]

約数ペア:

[(1, 28071880), (2, 14035940), (4, 7017970), (5, 5614376), (8, 3508985), (10, 2807188), (20, 1403594), (40, 701797), (41, 684680), (82, 342340), (164, 171170), (205, 136936), (328, 85585), (410, 68468), (820, 34234), (1640, 17117)]