18934804900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{400313}}^1$

素因数の和:400381

約数の個数: 72

約数和(自身を含む): 45866376864

約数和(自身を除く): 26931571964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1892, 2150, 2365, 4300, 4730, 9460, 11825, 23650, 47300, 400313, 800626, 1601252, 2001565, 4003130, 4403443, 8006260, 8806886, 10007825, 17213459, 17613772, 20015650, 22017215, 34426918, 40031300, 44034430, 68853836, 86067295, 88068860, 110086075, 172134590, 189348049, 220172150, 344269180, 378696098, 430336475, 440344300, 757392196, 860672950, 946740245, 1721345900, 1893480490, 3786960980, 4733701225, 9467402450, 18934804900]

約数ペア:

[(1, 18934804900), (2, 9467402450), (4, 4733701225), (5, 3786960980), (10, 1893480490), (11, 1721345900), (20, 946740245), (22, 860672950), (25, 757392196), (43, 440344300), (44, 430336475), (50, 378696098), (55, 344269180), (86, 220172150), (100, 189348049), (110, 172134590), (172, 110086075), (215, 88068860), (220, 86067295), (275, 68853836), (430, 44034430), (473, 40031300), (550, 34426918), (860, 22017215), (946, 20015650), (1075, 17613772), (1100, 17213459), (1892, 10007825), (2150, 8806886), (2365, 8006260), (4300, 4403443), (4730, 4003130), (9460, 2001565), (11825, 1601252), (23650, 800626), (47300, 400313)]