28609840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1154

約数の個数: 80

約数和(自身を含む): 77709312

約数和(自身を除く): 49099472

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, 1087, 1316, 1645, 1880, 2174, 2632, 3290, 3760, 4348, 5264, 5435, 6580, 7609, 8696, 10870, 13160, 15218, 17392, 21740, 26320, 30436, 38045, 43480, 51089, 60872, 76090, 86960, 102178, 121744, 152180, 204356, 255445, 304360, 357623, 408712, 510890, 608720, 715246, 817424, 1021780, 1430492, 1788115, 2043560, 2860984, 3576230, 4087120, 5721968, 7152460, 14304920, 28609840]

約数ペア:

[(1, 28609840), (2, 14304920), (4, 7152460), (5, 5721968), (7, 4087120), (8, 3576230), (10, 2860984), (14, 2043560), (16, 1788115), (20, 1430492), (28, 1021780), (35, 817424), (40, 715246), (47, 608720), (56, 510890), (70, 408712), (80, 357623), (94, 304360), (112, 255445), (140, 204356), (188, 152180), (235, 121744), (280, 102178), (329, 86960), (376, 76090), (470, 60872), (560, 51089), (658, 43480), (752, 38045), (940, 30436), (1087, 26320), (1316, 21740), (1645, 17392), (1880, 15218), (2174, 13160), (2632, 10870), (3290, 8696), (3760, 7609), (4348, 6580), (5264, 5435)]