25278160

素因数分解:

$2^4\times 5^1\times {\mathrm{315977}}^1$

素因数の和:315990

約数の個数: 20

約数和(自身を含む): 58771908

約数和(自身を除く): 33493748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 315977, 631954, 1263908, 1579885, 2527816, 3159770, 5055632, 6319540, 12639080, 25278160]

約数ペア:

[(1, 25278160), (2, 12639080), (4, 6319540), (5, 5055632), (8, 3159770), (10, 2527816), (16, 1579885), (20, 1263908), (40, 631954), (80, 315977)]