103639280

素因数分解:

$2^4\times 5^1\times {\mathrm{1295491}}^1$

素因数の和:1295504

約数の個数: 20

約数和(自身を含む): 240961512

約数和(自身を除く): 137322232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1295491, 2590982, 5181964, 6477455, 10363928, 12954910, 20727856, 25909820, 51819640, 103639280]

約数ペア:

[(1, 103639280), (2, 51819640), (4, 25909820), (5, 20727856), (8, 12954910), (10, 10363928), (16, 6477455), (20, 5181964), (40, 2590982), (80, 1295491)]