28201840

素因数分解:

$2^4\times 5^1\times {\mathrm{352523}}^1$

素因数の和:352536

約数の個数: 20

約数和(自身を含む): 65569464

約数和(自身を除く): 37367624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352523, 705046, 1410092, 1762615, 2820184, 3525230, 5640368, 7050460, 14100920, 28201840]

約数ペア:

[(1, 28201840), (2, 14100920), (4, 7050460), (5, 5640368), (8, 3525230), (10, 2820184), (16, 1762615), (20, 1410092), (40, 705046), (80, 352523)]