25939340

素因数分解:

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

素因数の和:6434

約数の個数: 48

約数和(自身を含む): 64411200

約数和(自身を除く): 38471860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 6389, 12778, 25556, 31945, 44723, 63890, 89446, 127780, 178892, 185281, 223615, 370562, 447230, 741124, 894460, 926405, 1296967, 1852810, 2593934, 3705620, 5187868, 6484835, 12969670, 25939340]

約数ペア:

[(1, 25939340), (2, 12969670), (4, 6484835), (5, 5187868), (7, 3705620), (10, 2593934), (14, 1852810), (20, 1296967), (28, 926405), (29, 894460), (35, 741124), (58, 447230), (70, 370562), (116, 223615), (140, 185281), (145, 178892), (203, 127780), (290, 89446), (406, 63890), (580, 44723), (812, 31945), (1015, 25556), (2030, 12778), (4060, 6389)]