201211515

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{887}}^1$

素因数の和:1040

約数の個数: 36

約数和(自身を含む): 354146832

約数和(自身を除く): 152935317

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 887, 1065, 2661, 3195, 4435, 5041, 7983, 13305, 15123, 25205, 39915, 45369, 62977, 75615, 188931, 226845, 314885, 566793, 944655, 2833965, 4471367, 13414101, 22356835, 40242303, 67070505, 201211515]

約数ペア:

[(1, 201211515), (3, 67070505), (5, 40242303), (9, 22356835), (15, 13414101), (45, 4471367), (71, 2833965), (213, 944655), (355, 566793), (639, 314885), (887, 226845), (1065, 188931), (2661, 75615), (3195, 62977), (4435, 45369), (5041, 39915), (7983, 25205), (13305, 15123)]