131695280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40151}}^1$

素因数の和:40205

約数の個数: 40

約数和(自身を含む): 313667424

約数和(自身を除く): 181972144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 40151, 80302, 160604, 200755, 321208, 401510, 642416, 803020, 1606040, 1646191, 3212080, 3292382, 6584764, 8230955, 13169528, 16461910, 26339056, 32923820, 65847640, 131695280]

約数ペア:

[(1, 131695280), (2, 65847640), (4, 32923820), (5, 26339056), (8, 16461910), (10, 13169528), (16, 8230955), (20, 6584764), (40, 3292382), (41, 3212080), (80, 1646191), (82, 1606040), (164, 803020), (205, 642416), (328, 401510), (410, 321208), (656, 200755), (820, 160604), (1640, 80302), (3280, 40151)]