1850420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 4572288

約数和(自身を除く): 2721868

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 647, 715, 1294, 1430, 2588, 2860, 3235, 6470, 7117, 8411, 12940, 14234, 16822, 28468, 33644, 35585, 42055, 71170, 84110, 92521, 142340, 168220, 185042, 370084, 462605, 925210, 1850420]

約数ペア:

[(1, 1850420), (2, 925210), (4, 462605), (5, 370084), (10, 185042), (11, 168220), (13, 142340), (20, 92521), (22, 84110), (26, 71170), (44, 42055), (52, 35585), (55, 33644), (65, 28468), (110, 16822), (130, 14234), (143, 12940), (220, 8411), (260, 7117), (286, 6470), (572, 3235), (647, 2860), (715, 2588), (1294, 1430)]