15781040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 40711680

約数和(自身を除く): 24930640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 227, 316, 395, 440, 454, 632, 790, 869, 880, 908, 1135, 1264, 1580, 1738, 1816, 2270, 2497, 3160, 3476, 3632, 4345, 4540, 4994, 6320, 6952, 8690, 9080, 9988, 12485, 13904, 17380, 17933, 18160, 19976, 24970, 34760, 35866, 39952, 49940, 69520, 71732, 89665, 99880, 143464, 179330, 197263, 199760, 286928, 358660, 394526, 717320, 789052, 986315, 1434640, 1578104, 1972630, 3156208, 3945260, 7890520, 15781040]

約数ペア:

[(1, 15781040), (2, 7890520), (4, 3945260), (5, 3156208), (8, 1972630), (10, 1578104), (11, 1434640), (16, 986315), (20, 789052), (22, 717320), (40, 394526), (44, 358660), (55, 286928), (79, 199760), (80, 197263), (88, 179330), (110, 143464), (158, 99880), (176, 89665), (220, 71732), (227, 69520), (316, 49940), (395, 39952), (440, 35866), (454, 34760), (632, 24970), (790, 19976), (869, 18160), (880, 17933), (908, 17380), (1135, 13904), (1264, 12485), (1580, 9988), (1738, 9080), (1816, 8690), (2270, 6952), (2497, 6320), (3160, 4994), (3476, 4540), (3632, 4345)]