81627660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1033}}^1$

素因数の和:1487

約数の個数: 72

約数和(自身を含む): 248408160

約数和(自身を除く): 166780500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 1033, 1317, 1756, 2066, 2195, 2634, 3099, 3951, 4132, 4390, 5165, 5268, 6198, 6585, 7902, 8780, 9297, 10330, 12396, 13170, 15495, 15804, 18594, 19755, 20660, 26340, 30990, 37188, 39510, 46485, 61980, 79020, 92970, 185940, 453487, 906974, 1360461, 1813948, 2267435, 2720922, 4081383, 4534870, 5441844, 6802305, 8162766, 9069740, 13604610, 16325532, 20406915, 27209220, 40813830, 81627660]

約数ペア:

[(1, 81627660), (2, 40813830), (3, 27209220), (4, 20406915), (5, 16325532), (6, 13604610), (9, 9069740), (10, 8162766), (12, 6802305), (15, 5441844), (18, 4534870), (20, 4081383), (30, 2720922), (36, 2267435), (45, 1813948), (60, 1360461), (90, 906974), (180, 453487), (439, 185940), (878, 92970), (1033, 79020), (1317, 61980), (1756, 46485), (2066, 39510), (2195, 37188), (2634, 30990), (3099, 26340), (3951, 20660), (4132, 19755), (4390, 18594), (5165, 15804), (5268, 15495), (6198, 13170), (6585, 12396), (7902, 10330), (8780, 9297)]