51878680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6389}}^1$

素因数の和:6436

約数の個数: 64

約数和(自身を含む): 138024000

約数和(自身を除く): 86145320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 6389, 8120, 12778, 25556, 31945, 44723, 51112, 63890, 89446, 127780, 178892, 185281, 223615, 255560, 357784, 370562, 447230, 741124, 894460, 926405, 1296967, 1482248, 1788920, 1852810, 2593934, 3705620, 5187868, 6484835, 7411240, 10375736, 12969670, 25939340, 51878680]

約数ペア:

[(1, 51878680), (2, 25939340), (4, 12969670), (5, 10375736), (7, 7411240), (8, 6484835), (10, 5187868), (14, 3705620), (20, 2593934), (28, 1852810), (29, 1788920), (35, 1482248), (40, 1296967), (56, 926405), (58, 894460), (70, 741124), (116, 447230), (140, 370562), (145, 357784), (203, 255560), (232, 223615), (280, 185281), (290, 178892), (406, 127780), (580, 89446), (812, 63890), (1015, 51112), (1160, 44723), (1624, 31945), (2030, 25556), (4060, 12778), (6389, 8120)]