28506520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1669}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 74548800

約数和(自身を除く): 46042280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1669, 1708, 2135, 2440, 3338, 3416, 4270, 6676, 8345, 8540, 11683, 13352, 16690, 17080, 23366, 33380, 46732, 58415, 66760, 93464, 101809, 116830, 203618, 233660, 407236, 467320, 509045, 712663, 814472, 1018090, 1425326, 2036180, 2850652, 3563315, 4072360, 5701304, 7126630, 14253260, 28506520]

約数ペア:

[(1, 28506520), (2, 14253260), (4, 7126630), (5, 5701304), (7, 4072360), (8, 3563315), (10, 2850652), (14, 2036180), (20, 1425326), (28, 1018090), (35, 814472), (40, 712663), (56, 509045), (61, 467320), (70, 407236), (122, 233660), (140, 203618), (244, 116830), (280, 101809), (305, 93464), (427, 66760), (488, 58415), (610, 46732), (854, 33380), (1220, 23366), (1669, 17080), (1708, 16690), (2135, 13352), (2440, 11683), (3338, 8540), (3416, 8345), (4270, 6676)]