18204340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11821}}^1$

素因数の和:11848

約数の個数: 48

約数和(自身を含む): 47666304

約数和(自身を除く): 29461964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11821, 23642, 47284, 59105, 82747, 118210, 130031, 165494, 236420, 260062, 330988, 413735, 520124, 650155, 827470, 910217, 1300310, 1654940, 1820434, 2600620, 3640868, 4551085, 9102170, 18204340]

約数ペア:

[(1, 18204340), (2, 9102170), (4, 4551085), (5, 3640868), (7, 2600620), (10, 1820434), (11, 1654940), (14, 1300310), (20, 910217), (22, 827470), (28, 650155), (35, 520124), (44, 413735), (55, 330988), (70, 260062), (77, 236420), (110, 165494), (140, 130031), (154, 118210), (220, 82747), (308, 59105), (385, 47284), (770, 23642), (1540, 11821)]