28248080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 76197504

約数和(自身を除く): 47949424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 691, 730, 1022, 1168, 1382, 1460, 2044, 2555, 2764, 2920, 3455, 4088, 4837, 5110, 5528, 5840, 6910, 8176, 9674, 10220, 11056, 13820, 19348, 20440, 24185, 27640, 38696, 40880, 48370, 50443, 55280, 77392, 96740, 100886, 193480, 201772, 252215, 353101, 386960, 403544, 504430, 706202, 807088, 1008860, 1412404, 1765505, 2017720, 2824808, 3531010, 4035440, 5649616, 7062020, 14124040, 28248080]

約数ペア:

[(1, 28248080), (2, 14124040), (4, 7062020), (5, 5649616), (7, 4035440), (8, 3531010), (10, 2824808), (14, 2017720), (16, 1765505), (20, 1412404), (28, 1008860), (35, 807088), (40, 706202), (56, 504430), (70, 403544), (73, 386960), (80, 353101), (112, 252215), (140, 201772), (146, 193480), (280, 100886), (292, 96740), (365, 77392), (511, 55280), (560, 50443), (584, 48370), (691, 40880), (730, 38696), (1022, 27640), (1168, 24185), (1382, 20440), (1460, 19348), (2044, 13820), (2555, 11056), (2764, 10220), (2920, 9674), (3455, 8176), (4088, 6910), (4837, 5840), (5110, 5528)]