8940226180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{297809}}^1$

素因数の和:297916

約数の個数: 48

約数和(自身を含む): 20012832000

約数和(自身を除く): 11072605820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020, 297809, 595618, 1191236, 1489045, 2978090, 5658371, 5956180, 11316742, 22633484, 23526911, 28291855, 47053822, 56583710, 94107644, 113167420, 117634555, 235269110, 447011309, 470538220, 894022618, 1788045236, 2235056545, 4470113090, 8940226180]

約数ペア:

[(1, 8940226180), (2, 4470113090), (4, 2235056545), (5, 1788045236), (10, 894022618), (19, 470538220), (20, 447011309), (38, 235269110), (76, 117634555), (79, 113167420), (95, 94107644), (158, 56583710), (190, 47053822), (316, 28291855), (380, 23526911), (395, 22633484), (790, 11316742), (1501, 5956180), (1580, 5658371), (3002, 2978090), (6004, 1489045), (7505, 1191236), (15010, 595618), (30020, 297809)]