20105204080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{171079}}^1$

素因数の和:171218

約数の個数: 80

約数和(自身を含む): 50786124480

約数和(自身を除く): 30680920400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 208, 226, 260, 452, 520, 565, 904, 1040, 1130, 1469, 1808, 2260, 2938, 4520, 5876, 7345, 9040, 11752, 14690, 23504, 29380, 58760, 117520, 171079, 342158, 684316, 855395, 1368632, 1710790, 2224027, 2737264, 3421580, 4448054, 6843160, 8896108, 11120135, 13686320, 17792216, 19331927, 22240270, 35584432, 38663854, 44480540, 77327708, 88961080, 96659635, 154655416, 177922160, 193319270, 251315051, 309310832, 386638540, 502630102, 773277080, 1005260204, 1256575255, 1546554160, 2010520408, 2513150510, 4021040816, 5026301020, 10052602040, 20105204080]

約数ペア:

[(1, 20105204080), (2, 10052602040), (4, 5026301020), (5, 4021040816), (8, 2513150510), (10, 2010520408), (13, 1546554160), (16, 1256575255), (20, 1005260204), (26, 773277080), (40, 502630102), (52, 386638540), (65, 309310832), (80, 251315051), (104, 193319270), (113, 177922160), (130, 154655416), (208, 96659635), (226, 88961080), (260, 77327708), (452, 44480540), (520, 38663854), (565, 35584432), (904, 22240270), (1040, 19331927), (1130, 17792216), (1469, 13686320), (1808, 11120135), (2260, 8896108), (2938, 6843160), (4520, 4448054), (5876, 3421580), (7345, 2737264), (9040, 2224027), (11752, 1710790), (14690, 1368632), (23504, 855395), (29380, 684316), (58760, 342158), (117520, 171079)]