2190980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 5249664

約数和(自身を除く): 3058684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 433, 460, 506, 866, 1012, 1265, 1732, 2165, 2530, 4330, 4763, 5060, 8660, 9526, 9959, 19052, 19918, 23815, 39836, 47630, 49795, 95260, 99590, 109549, 199180, 219098, 438196, 547745, 1095490, 2190980]

約数ペア:

[(1, 2190980), (2, 1095490), (4, 547745), (5, 438196), (10, 219098), (11, 199180), (20, 109549), (22, 99590), (23, 95260), (44, 49795), (46, 47630), (55, 39836), (92, 23815), (110, 19918), (115, 19052), (220, 9959), (230, 9526), (253, 8660), (433, 5060), (460, 4763), (506, 4330), (866, 2530), (1012, 2165), (1265, 1732)]