28127995

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 39853440

約数和(自身を除く): 11725445

約数列:

[1, 5, 7, 35, 73, 101, 109, 365, 505, 511, 545, 707, 763, 2555, 3535, 3815, 7373, 7957, 11009, 36865, 39785, 51611, 55045, 55699, 77063, 258055, 278495, 385315, 803657, 4018285, 5625599, 28127995]

約数ペア:

[(1, 28127995), (5, 5625599), (7, 4018285), (35, 803657), (73, 385315), (101, 278495), (109, 258055), (365, 77063), (505, 55699), (511, 55045), (545, 51611), (707, 39785), (763, 36865), (2555, 11009), (3535, 7957), (3815, 7373)]