817803025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 1128191680

約数和(自身を除く): 310388655

約数列:

[1, 5, 13, 25, 43, 65, 139, 215, 325, 421, 559, 695, 1075, 1807, 2105, 2795, 3475, 5473, 5977, 9035, 10525, 13975, 18103, 27365, 29885, 45175, 58519, 77701, 90515, 136825, 149425, 235339, 292595, 388505, 452575, 760747, 1176695, 1462975, 1942525, 2516317, 3803735, 5883475, 12581585, 19018675, 32712121, 62907925, 163560605, 817803025]

約数ペア:

[(1, 817803025), (5, 163560605), (13, 62907925), (25, 32712121), (43, 19018675), (65, 12581585), (139, 5883475), (215, 3803735), (325, 2516317), (421, 1942525), (559, 1462975), (695, 1176695), (1075, 760747), (1807, 452575), (2105, 388505), (2795, 292595), (3475, 235339), (5473, 149425), (5977, 136825), (9035, 90515), (10525, 77701), (13975, 58519), (18103, 45175), (27365, 29885)]