90437680

素因数分解:

$2^4\times 5^1\times {\mathrm{1130471}}^1$

素因数の和:1130484

約数の個数: 20

約数和(自身を含む): 210267792

約数和(自身を除く): 119830112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1130471, 2260942, 4521884, 5652355, 9043768, 11304710, 18087536, 22609420, 45218840, 90437680]

約数ペア:

[(1, 90437680), (2, 45218840), (4, 22609420), (5, 18087536), (8, 11304710), (10, 9043768), (16, 5652355), (20, 4521884), (40, 2260942), (80, 1130471)]