21050292280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4729}}^1\times {\mathrm{5857}}^1$

素因数の和:10616

約数の個数: 64

約数和(自身を含む): 49875012000

約数和(自身を除く): 28824719720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 4729, 5857, 9458, 11714, 18916, 23428, 23645, 29285, 37832, 46856, 47290, 58570, 89851, 94580, 111283, 117140, 179702, 189160, 222566, 234280, 359404, 445132, 449255, 556415, 718808, 890264, 898510, 1112830, 1797020, 2225660, 3594040, 4451320, 27697753, 55395506, 110791012, 138488765, 221582024, 276977530, 526257307, 553955060, 1052514614, 1107910120, 2105029228, 2631286535, 4210058456, 5262573070, 10525146140, 21050292280]

約数ペア:

[(1, 21050292280), (2, 10525146140), (4, 5262573070), (5, 4210058456), (8, 2631286535), (10, 2105029228), (19, 1107910120), (20, 1052514614), (38, 553955060), (40, 526257307), (76, 276977530), (95, 221582024), (152, 138488765), (190, 110791012), (380, 55395506), (760, 27697753), (4729, 4451320), (5857, 3594040), (9458, 2225660), (11714, 1797020), (18916, 1112830), (23428, 898510), (23645, 890264), (29285, 718808), (37832, 556415), (46856, 449255), (47290, 445132), (58570, 359404), (89851, 234280), (94580, 222566), (111283, 189160), (117140, 179702)]