7890520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 19699200

約数和(自身を除く): 11808680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 227, 316, 395, 440, 454, 632, 790, 869, 908, 1135, 1580, 1738, 1816, 2270, 2497, 3160, 3476, 4345, 4540, 4994, 6952, 8690, 9080, 9988, 12485, 17380, 17933, 19976, 24970, 34760, 35866, 49940, 71732, 89665, 99880, 143464, 179330, 197263, 358660, 394526, 717320, 789052, 986315, 1578104, 1972630, 3945260, 7890520]

約数ペア:

[(1, 7890520), (2, 3945260), (4, 1972630), (5, 1578104), (8, 986315), (10, 789052), (11, 717320), (20, 394526), (22, 358660), (40, 197263), (44, 179330), (55, 143464), (79, 99880), (88, 89665), (110, 71732), (158, 49940), (220, 35866), (227, 34760), (316, 24970), (395, 19976), (440, 17933), (454, 17380), (632, 12485), (790, 9988), (869, 9080), (908, 8690), (1135, 6952), (1580, 4994), (1738, 4540), (1816, 4345), (2270, 3476), (2497, 3160)]