82780940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 193945920

約数和(自身を除く): 111164980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 316, 395, 433, 484, 605, 790, 866, 869, 1210, 1580, 1732, 1738, 2165, 2420, 3476, 4330, 4345, 4763, 8660, 8690, 9526, 9559, 17380, 19052, 19118, 23815, 34207, 38236, 47630, 47795, 52393, 68414, 95260, 95590, 104786, 136828, 171035, 191180, 209572, 261965, 342070, 376277, 523930, 684140, 752554, 1047860, 1505108, 1881385, 3762770, 4139047, 7525540, 8278094, 16556188, 20695235, 41390470, 82780940]

約数ペア:

[(1, 82780940), (2, 41390470), (4, 20695235), (5, 16556188), (10, 8278094), (11, 7525540), (20, 4139047), (22, 3762770), (44, 1881385), (55, 1505108), (79, 1047860), (110, 752554), (121, 684140), (158, 523930), (220, 376277), (242, 342070), (316, 261965), (395, 209572), (433, 191180), (484, 171035), (605, 136828), (790, 104786), (866, 95590), (869, 95260), (1210, 68414), (1580, 52393), (1732, 47795), (1738, 47630), (2165, 38236), (2420, 34207), (3476, 23815), (4330, 19118), (4345, 19052), (4763, 17380), (8660, 9559), (8690, 9526)]