8889708080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{25969}}^1$

素因数の和:26382

約数の個数: 80

約数和(自身を含む): 22606365600

約数和(自身を除く): 13716657520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 389, 440, 778, 880, 1556, 1945, 3112, 3890, 4279, 6224, 7780, 8558, 15560, 17116, 21395, 25969, 31120, 34232, 42790, 51938, 68464, 85580, 103876, 129845, 171160, 207752, 259690, 285659, 342320, 415504, 519380, 571318, 1038760, 1142636, 1428295, 2077520, 2285272, 2856590, 4570544, 5713180, 10101941, 11426360, 20203882, 22852720, 40407764, 50509705, 80815528, 101019410, 111121351, 161631056, 202038820, 222242702, 404077640, 444485404, 555606755, 808155280, 888970808, 1111213510, 1777941616, 2222427020, 4444854040, 8889708080]

約数ペア:

[(1, 8889708080), (2, 4444854040), (4, 2222427020), (5, 1777941616), (8, 1111213510), (10, 888970808), (11, 808155280), (16, 555606755), (20, 444485404), (22, 404077640), (40, 222242702), (44, 202038820), (55, 161631056), (80, 111121351), (88, 101019410), (110, 80815528), (176, 50509705), (220, 40407764), (389, 22852720), (440, 20203882), (778, 11426360), (880, 10101941), (1556, 5713180), (1945, 4570544), (3112, 2856590), (3890, 2285272), (4279, 2077520), (6224, 1428295), (7780, 1142636), (8558, 1038760), (15560, 571318), (17116, 519380), (21395, 415504), (25969, 342320), (31120, 285659), (34232, 259690), (42790, 207752), (51938, 171160), (68464, 129845), (85580, 103876)]