20349714280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{919969}}^1$

素因数の和:920066

約数の個数: 64

約数和(自身を含む): 52990272000

約数和(自身を除く): 32640557720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 11060, 22120, 919969, 1839938, 3679876, 4599845, 6439783, 7359752, 9199690, 12879566, 18399380, 25759132, 32198915, 36798760, 51518264, 64397830, 72677551, 128795660, 145355102, 257591320, 290710204, 363387755, 508742857, 581420408, 726775510, 1017485714, 1453551020, 2034971428, 2543714285, 2907102040, 4069942856, 5087428570, 10174857140, 20349714280]

約数ペア:

[(1, 20349714280), (2, 10174857140), (4, 5087428570), (5, 4069942856), (7, 2907102040), (8, 2543714285), (10, 2034971428), (14, 1453551020), (20, 1017485714), (28, 726775510), (35, 581420408), (40, 508742857), (56, 363387755), (70, 290710204), (79, 257591320), (140, 145355102), (158, 128795660), (280, 72677551), (316, 64397830), (395, 51518264), (553, 36798760), (632, 32198915), (790, 25759132), (1106, 18399380), (1580, 12879566), (2212, 9199690), (2765, 7359752), (3160, 6439783), (4424, 4599845), (5530, 3679876), (11060, 1839938), (22120, 919969)]