208031960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{85259}}^1$

素因数の和:85331

約数の個数: 32

約数和(自身を含む): 475750800

約数和(自身を除く): 267718840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 85259, 170518, 341036, 426295, 682072, 852590, 1705180, 3410360, 5200799, 10401598, 20803196, 26003995, 41606392, 52007990, 104015980, 208031960]

約数ペア:

[(1, 208031960), (2, 104015980), (4, 52007990), (5, 41606392), (8, 26003995), (10, 20803196), (20, 10401598), (40, 5200799), (61, 3410360), (122, 1705180), (244, 852590), (305, 682072), (488, 426295), (610, 341036), (1220, 170518), (2440, 85259)]