80704980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10427}}^1$

素因数の和:10485

約数の個数: 72

約数和(自身を含む): 250522272

約数和(自身を除く): 169817292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 10427, 20854, 31281, 41708, 52135, 62562, 93843, 104270, 125124, 156405, 187686, 208540, 312810, 375372, 448361, 469215, 625620, 896722, 938430, 1345083, 1793444, 1876860, 2241805, 2690166, 4035249, 4483610, 5380332, 6725415, 8070498, 8967220, 13450830, 16140996, 20176245, 26901660, 40352490, 80704980]

約数ペア:

[(1, 80704980), (2, 40352490), (3, 26901660), (4, 20176245), (5, 16140996), (6, 13450830), (9, 8967220), (10, 8070498), (12, 6725415), (15, 5380332), (18, 4483610), (20, 4035249), (30, 2690166), (36, 2241805), (43, 1876860), (45, 1793444), (60, 1345083), (86, 938430), (90, 896722), (129, 625620), (172, 469215), (180, 448361), (215, 375372), (258, 312810), (387, 208540), (430, 187686), (516, 156405), (645, 125124), (774, 104270), (860, 93843), (1290, 62562), (1548, 52135), (1935, 41708), (2580, 31281), (3870, 20854), (7740, 10427)]