28488785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4021}}^1$

素因数の和:4148

約数の個数: 16

約数和(自身を含む): 37163280

約数和(自身を除く): 8674495

約数列:

[1, 5, 13, 65, 109, 545, 1417, 4021, 7085, 20105, 52273, 261365, 438289, 2191445, 5697757, 28488785]

約数ペア:

[(1, 28488785), (5, 5697757), (13, 2191445), (65, 438289), (109, 261365), (545, 52273), (1417, 20105), (4021, 7085)]