201628125

素因数分解:

$3^2\times 5^5\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 372913632

約数和(自身を除く): 171285507

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 107, 125, 201, 225, 321, 335, 375, 535, 603, 625, 963, 1005, 1125, 1605, 1675, 1875, 2675, 3015, 3125, 4815, 5025, 5625, 7169, 8025, 8375, 9375, 13375, 15075, 21507, 24075, 25125, 28125, 35845, 40125, 41875, 64521, 66875, 75375, 107535, 120375, 125625, 179225, 200625, 209375, 322605, 334375, 376875, 537675, 601875, 628125, 896125, 1003125, 1613025, 1884375, 2688375, 3009375, 4480625, 8065125, 13441875, 22403125, 40325625, 67209375, 201628125]

約数ペア:

[(1, 201628125), (3, 67209375), (5, 40325625), (9, 22403125), (15, 13441875), (25, 8065125), (45, 4480625), (67, 3009375), (75, 2688375), (107, 1884375), (125, 1613025), (201, 1003125), (225, 896125), (321, 628125), (335, 601875), (375, 537675), (535, 376875), (603, 334375), (625, 322605), (963, 209375), (1005, 200625), (1125, 179225), (1605, 125625), (1675, 120375), (1875, 107535), (2675, 75375), (3015, 66875), (3125, 64521), (4815, 41875), (5025, 40125), (5625, 35845), (7169, 28125), (8025, 25125), (8375, 24075), (9375, 21507), (13375, 15075)]