256890335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 359724288

約数和(自身を除く): 102833953

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 241, 299, 403, 529, 713, 1205, 1495, 2015, 2645, 3133, 3565, 5543, 6877, 7471, 9269, 15665, 16399, 27715, 34385, 37355, 46345, 72059, 81995, 97123, 127489, 171833, 213187, 360295, 485615, 637445, 859165, 1065935, 1657357, 2233829, 3952159, 8286785, 11169145, 19760795, 51378067, 256890335]

約数ペア:

[(1, 256890335), (5, 51378067), (13, 19760795), (23, 11169145), (31, 8286785), (65, 3952159), (115, 2233829), (155, 1657357), (241, 1065935), (299, 859165), (403, 637445), (529, 485615), (713, 360295), (1205, 213187), (1495, 171833), (2015, 127489), (2645, 97123), (3133, 81995), (3565, 72059), (5543, 46345), (6877, 37355), (7471, 34385), (9269, 27715), (15665, 16399)]