2688880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 80

約数和(自身を含む): 6919200

約数和(自身を除く): 4230320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 61, 76, 80, 95, 116, 122, 145, 152, 190, 232, 244, 290, 304, 305, 380, 464, 488, 551, 580, 610, 760, 976, 1102, 1159, 1160, 1220, 1520, 1769, 2204, 2318, 2320, 2440, 2755, 3538, 4408, 4636, 4880, 5510, 5795, 7076, 8816, 8845, 9272, 11020, 11590, 14152, 17690, 18544, 22040, 23180, 28304, 33611, 35380, 44080, 46360, 67222, 70760, 92720, 134444, 141520, 168055, 268888, 336110, 537776, 672220, 1344440, 2688880]

約数ペア:

[(1, 2688880), (2, 1344440), (4, 672220), (5, 537776), (8, 336110), (10, 268888), (16, 168055), (19, 141520), (20, 134444), (29, 92720), (38, 70760), (40, 67222), (58, 46360), (61, 44080), (76, 35380), (80, 33611), (95, 28304), (116, 23180), (122, 22040), (145, 18544), (152, 17690), (190, 14152), (232, 11590), (244, 11020), (290, 9272), (304, 8845), (305, 8816), (380, 7076), (464, 5795), (488, 5510), (551, 4880), (580, 4636), (610, 4408), (760, 3538), (976, 2755), (1102, 2440), (1159, 2320), (1160, 2318), (1220, 2204), (1520, 1769)]