78968120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25639}}^1$

素因数の和:25668

約数の個数: 64

約数和(自身を含む): 221529600

約数和(自身を除く): 142561480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 25639, 51278, 102556, 128195, 179473, 205112, 256390, 282029, 358946, 512780, 564058, 717892, 897365, 1025560, 1128116, 1410145, 1435784, 1794730, 1974203, 2256232, 2820290, 3589460, 3948406, 5640580, 7178920, 7896812, 9871015, 11281160, 15793624, 19742030, 39484060, 78968120]

約数ペア:

[(1, 78968120), (2, 39484060), (4, 19742030), (5, 15793624), (7, 11281160), (8, 9871015), (10, 7896812), (11, 7178920), (14, 5640580), (20, 3948406), (22, 3589460), (28, 2820290), (35, 2256232), (40, 1974203), (44, 1794730), (55, 1435784), (56, 1410145), (70, 1128116), (77, 1025560), (88, 897365), (110, 717892), (140, 564058), (154, 512780), (220, 358946), (280, 282029), (308, 256390), (385, 205112), (440, 179473), (616, 128195), (770, 102556), (1540, 51278), (3080, 25639)]