20014740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 61090848

約数和(自身を除く): 41076108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 443, 502, 753, 886, 1004, 1255, 1329, 1506, 1772, 2215, 2259, 2510, 2658, 3012, 3765, 3987, 4430, 4518, 5020, 5316, 6645, 7530, 7974, 8860, 9036, 11295, 13290, 15060, 15948, 19935, 22590, 26580, 39870, 45180, 79740, 111193, 222386, 333579, 444772, 555965, 667158, 1000737, 1111930, 1334316, 1667895, 2001474, 2223860, 3335790, 4002948, 5003685, 6671580, 10007370, 20014740]

約数ペア:

[(1, 20014740), (2, 10007370), (3, 6671580), (4, 5003685), (5, 4002948), (6, 3335790), (9, 2223860), (10, 2001474), (12, 1667895), (15, 1334316), (18, 1111930), (20, 1000737), (30, 667158), (36, 555965), (45, 444772), (60, 333579), (90, 222386), (180, 111193), (251, 79740), (443, 45180), (502, 39870), (753, 26580), (886, 22590), (1004, 19935), (1255, 15948), (1329, 15060), (1506, 13290), (1772, 11295), (2215, 9036), (2259, 8860), (2510, 7974), (2658, 7530), (3012, 6645), (3765, 5316), (3987, 5020), (4430, 4518)]