265780660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1663}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 571963392

約数和(自身を除く): 306182732

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 244, 262, 305, 524, 610, 655, 1220, 1310, 1663, 2620, 3326, 6652, 7991, 8315, 15982, 16630, 31964, 33260, 39955, 79910, 101443, 159820, 202886, 217853, 405772, 435706, 507215, 871412, 1014430, 1089265, 2028860, 2178530, 4357060, 13289033, 26578066, 53156132, 66445165, 132890330, 265780660]

約数ペア:

[(1, 265780660), (2, 132890330), (4, 66445165), (5, 53156132), (10, 26578066), (20, 13289033), (61, 4357060), (122, 2178530), (131, 2028860), (244, 1089265), (262, 1014430), (305, 871412), (524, 507215), (610, 435706), (655, 405772), (1220, 217853), (1310, 202886), (1663, 159820), (2620, 101443), (3326, 79910), (6652, 39955), (7991, 33260), (8315, 31964), (15982, 16630)]