645780520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{209669}}^1$

素因数の和:209698

約数の個数: 64

約数和(自身を含む): 1811548800

約数和(自身を除く): 1165768280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 209669, 419338, 838676, 1048345, 1467683, 1677352, 2096690, 2306359, 2935366, 4193380, 4612718, 5870732, 7338415, 8386760, 9225436, 11531795, 11741464, 14676830, 16144513, 18450872, 23063590, 29353660, 32289026, 46127180, 58707320, 64578052, 80722565, 92254360, 129156104, 161445130, 322890260, 645780520]

約数ペア:

[(1, 645780520), (2, 322890260), (4, 161445130), (5, 129156104), (7, 92254360), (8, 80722565), (10, 64578052), (11, 58707320), (14, 46127180), (20, 32289026), (22, 29353660), (28, 23063590), (35, 18450872), (40, 16144513), (44, 14676830), (55, 11741464), (56, 11531795), (70, 9225436), (77, 8386760), (88, 7338415), (110, 5870732), (140, 4612718), (154, 4193380), (220, 2935366), (280, 2306359), (308, 2096690), (385, 1677352), (440, 1467683), (616, 1048345), (770, 838676), (1540, 419338), (3080, 209669)]