65460225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 115706880

約数和(自身を除く): 50246655

約数列:

[1, 3, 5, 15, 19, 25, 57, 71, 75, 95, 213, 285, 355, 475, 647, 1065, 1349, 1425, 1775, 1941, 3235, 4047, 5325, 6745, 9705, 12293, 16175, 20235, 33725, 36879, 45937, 48525, 61465, 101175, 137811, 184395, 229685, 307325, 689055, 872803, 921975, 1148425, 2618409, 3445275, 4364015, 13092045, 21820075, 65460225]

約数ペア:

[(1, 65460225), (3, 21820075), (5, 13092045), (15, 4364015), (19, 3445275), (25, 2618409), (57, 1148425), (71, 921975), (75, 872803), (95, 689055), (213, 307325), (285, 229685), (355, 184395), (475, 137811), (647, 101175), (1065, 61465), (1349, 48525), (1425, 45937), (1775, 36879), (1941, 33725), (3235, 20235), (4047, 16175), (5325, 12293), (6745, 9705)]