261987964

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{877}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 538094592

約数和(自身を除く): 276106628

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 227, 329, 454, 658, 877, 908, 1316, 1589, 1754, 3178, 3508, 6139, 6356, 10669, 12278, 21338, 24556, 41219, 42676, 74683, 82438, 149366, 164876, 199079, 288533, 298732, 398158, 577066, 796316, 1154132, 1393553, 2787106, 5574212, 9356713, 18713426, 37426852, 65496991, 130993982, 261987964]

約数ペア:

[(1, 261987964), (2, 130993982), (4, 65496991), (7, 37426852), (14, 18713426), (28, 9356713), (47, 5574212), (94, 2787106), (188, 1393553), (227, 1154132), (329, 796316), (454, 577066), (658, 398158), (877, 298732), (908, 288533), (1316, 199079), (1589, 164876), (1754, 149366), (3178, 82438), (3508, 74683), (6139, 42676), (6356, 41219), (10669, 24556), (12278, 21338)]