168651940

素因数分解:

$2^2\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{4507}}^1$

素因数の和:6387

約数の個数: 24

約数和(自身を含む): 354436992

約数和(自身を除く): 185785052

約数列:

[1, 2, 4, 5, 10, 20, 1871, 3742, 4507, 7484, 9014, 9355, 18028, 18710, 22535, 37420, 45070, 90140, 8432597, 16865194, 33730388, 42162985, 84325970, 168651940]

約数ペア:

[(1, 168651940), (2, 84325970), (4, 42162985), (5, 33730388), (10, 16865194), (20, 8432597), (1871, 90140), (3742, 45070), (4507, 37420), (7484, 22535), (9014, 18710), (9355, 18028)]