280464016

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131797}}^1$

素因数の和:131831

約数の個数: 40

約数和(自身を含む): 653718080

約数和(自身を除く): 373254064

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 131797, 263594, 527188, 922579, 1054376, 1845158, 2108752, 2504143, 3690316, 5008286, 7380632, 10016572, 14761264, 17529001, 20033144, 35058002, 40066288, 70116004, 140232008, 280464016]

約数ペア:

[(1, 280464016), (2, 140232008), (4, 70116004), (7, 40066288), (8, 35058002), (14, 20033144), (16, 17529001), (19, 14761264), (28, 10016572), (38, 7380632), (56, 5008286), (76, 3690316), (112, 2504143), (133, 2108752), (152, 1845158), (266, 1054376), (304, 922579), (532, 527188), (1064, 263594), (2128, 131797)]