139720240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{887}}^1$

素因数の和:1090

約数の個数: 80

約数和(自身を含む): 356762880

約数和(自身を除く): 217042640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 179, 220, 358, 440, 716, 880, 887, 895, 1432, 1774, 1790, 1969, 2864, 3548, 3580, 3938, 4435, 7096, 7160, 7876, 8870, 9757, 9845, 14192, 14320, 15752, 17740, 19514, 19690, 31504, 35480, 39028, 39380, 48785, 70960, 78056, 78760, 97570, 156112, 157520, 158773, 195140, 317546, 390280, 635092, 780560, 793865, 1270184, 1587730, 1746503, 2540368, 3175460, 3493006, 6350920, 6986012, 8732515, 12701840, 13972024, 17465030, 27944048, 34930060, 69860120, 139720240]

約数ペア:

[(1, 139720240), (2, 69860120), (4, 34930060), (5, 27944048), (8, 17465030), (10, 13972024), (11, 12701840), (16, 8732515), (20, 6986012), (22, 6350920), (40, 3493006), (44, 3175460), (55, 2540368), (80, 1746503), (88, 1587730), (110, 1270184), (176, 793865), (179, 780560), (220, 635092), (358, 390280), (440, 317546), (716, 195140), (880, 158773), (887, 157520), (895, 156112), (1432, 97570), (1774, 78760), (1790, 78056), (1969, 70960), (2864, 48785), (3548, 39380), (3580, 39028), (3938, 35480), (4435, 31504), (7096, 19690), (7160, 19514), (7876, 17740), (8870, 15752), (9757, 14320), (9845, 14192)]