2021145125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{16349}}^1$

素因数の和:16430

約数の個数: 32

約数和(自身を含む): 2693433600

約数和(自身を除く): 672288475

約数列:

[1, 5, 23, 25, 43, 115, 125, 215, 575, 989, 1075, 2875, 4945, 5375, 16349, 24725, 81745, 123625, 376027, 408725, 703007, 1880135, 2043625, 3515035, 9400675, 16169161, 17575175, 47003375, 80845805, 87875875, 404229025, 2021145125]

約数ペア:

[(1, 2021145125), (5, 404229025), (23, 87875875), (25, 80845805), (43, 47003375), (115, 17575175), (125, 16169161), (215, 9400675), (575, 3515035), (989, 2043625), (1075, 1880135), (2875, 703007), (4945, 408725), (5375, 376027), (16349, 123625), (24725, 81745)]