64521225

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1567}}^1$

素因数の和:1647

約数の個数: 48

約数和(自身を含む): 120547840

約数和(自身を除く): 56026615

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 549, 675, 915, 1525, 1567, 1647, 2745, 4575, 4701, 7835, 8235, 13725, 14103, 23505, 39175, 41175, 42309, 70515, 95587, 117525, 211545, 286761, 352575, 477935, 860283, 1057725, 1433805, 2389675, 2580849, 4301415, 7169025, 12904245, 21507075, 64521225]

約数ペア:

[(1, 64521225), (3, 21507075), (5, 12904245), (9, 7169025), (15, 4301415), (25, 2580849), (27, 2389675), (45, 1433805), (61, 1057725), (75, 860283), (135, 477935), (183, 352575), (225, 286761), (305, 211545), (549, 117525), (675, 95587), (915, 70515), (1525, 42309), (1567, 41175), (1647, 39175), (2745, 23505), (4575, 14103), (4701, 13725), (7835, 8235)]