190539980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1289}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 422604000

約数和(自身を除く): 232064020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 778, 1289, 1556, 1945, 2578, 3890, 5156, 6445, 7391, 7780, 12890, 14782, 24491, 25780, 29564, 36955, 48982, 73910, 97964, 122455, 147820, 244910, 489820, 501421, 1002842, 2005684, 2507105, 5014210, 9526999, 10028420, 19053998, 38107996, 47634995, 95269990, 190539980]

約数ペア:

[(1, 190539980), (2, 95269990), (4, 47634995), (5, 38107996), (10, 19053998), (19, 10028420), (20, 9526999), (38, 5014210), (76, 2507105), (95, 2005684), (190, 1002842), (380, 501421), (389, 489820), (778, 244910), (1289, 147820), (1556, 122455), (1945, 97964), (2578, 73910), (3890, 48982), (5156, 36955), (6445, 29564), (7391, 25780), (7780, 24491), (12890, 14782)]