28136080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1069}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 76423680

約数和(自身を除く): 48287600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1069, 1316, 1645, 1880, 2138, 2632, 3290, 3760, 4276, 5264, 5345, 6580, 7483, 8552, 10690, 13160, 14966, 17104, 21380, 26320, 29932, 37415, 42760, 50243, 59864, 74830, 85520, 100486, 119728, 149660, 200972, 251215, 299320, 351701, 401944, 502430, 598640, 703402, 803888, 1004860, 1406804, 1758505, 2009720, 2813608, 3517010, 4019440, 5627216, 7034020, 14068040, 28136080]

約数ペア:

[(1, 28136080), (2, 14068040), (4, 7034020), (5, 5627216), (7, 4019440), (8, 3517010), (10, 2813608), (14, 2009720), (16, 1758505), (20, 1406804), (28, 1004860), (35, 803888), (40, 703402), (47, 598640), (56, 502430), (70, 401944), (80, 351701), (94, 299320), (112, 251215), (140, 200972), (188, 149660), (235, 119728), (280, 100486), (329, 85520), (376, 74830), (470, 59864), (560, 50243), (658, 42760), (752, 37415), (940, 29932), (1069, 26320), (1316, 21380), (1645, 17104), (1880, 14966), (2138, 13160), (2632, 10690), (3290, 8552), (3760, 7483), (4276, 6580), (5264, 5345)]