25661325

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 44411840

約数和(自身を除く): 18750515

約数列:

[1, 3, 5, 15, 25, 43, 73, 75, 109, 129, 215, 219, 327, 365, 545, 645, 1075, 1095, 1635, 1825, 2725, 3139, 3225, 4687, 5475, 7957, 8175, 9417, 14061, 15695, 23435, 23871, 39785, 47085, 70305, 78475, 117175, 119355, 198925, 235425, 342151, 351525, 596775, 1026453, 1710755, 5132265, 8553775, 25661325]

約数ペア:

[(1, 25661325), (3, 8553775), (5, 5132265), (15, 1710755), (25, 1026453), (43, 596775), (73, 351525), (75, 342151), (109, 235425), (129, 198925), (215, 119355), (219, 117175), (327, 78475), (365, 70305), (545, 47085), (645, 39785), (1075, 23871), (1095, 23435), (1635, 15695), (1825, 14061), (2725, 9417), (3139, 8175), (3225, 7957), (4687, 5475)]