28251664

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 66027520

約数和(自身を除く): 37775856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 79, 103, 112, 124, 158, 206, 217, 248, 316, 412, 434, 496, 553, 632, 721, 824, 868, 1106, 1264, 1442, 1648, 1736, 2212, 2449, 2884, 3193, 3472, 4424, 4898, 5768, 6386, 8137, 8848, 9796, 11536, 12772, 16274, 17143, 19592, 22351, 25544, 32548, 34286, 39184, 44702, 51088, 56959, 65096, 68572, 89404, 113918, 130192, 137144, 178808, 227836, 252247, 274288, 357616, 455672, 504494, 911344, 1008988, 1765729, 2017976, 3531458, 4035952, 7062916, 14125832, 28251664]

約数ペア:

[(1, 28251664), (2, 14125832), (4, 7062916), (7, 4035952), (8, 3531458), (14, 2017976), (16, 1765729), (28, 1008988), (31, 911344), (56, 504494), (62, 455672), (79, 357616), (103, 274288), (112, 252247), (124, 227836), (158, 178808), (206, 137144), (217, 130192), (248, 113918), (316, 89404), (412, 68572), (434, 65096), (496, 56959), (553, 51088), (632, 44702), (721, 39184), (824, 34286), (868, 32548), (1106, 25544), (1264, 22351), (1442, 19592), (1648, 17143), (1736, 16274), (2212, 12772), (2449, 11536), (2884, 9796), (3193, 8848), (3472, 8137), (4424, 6386), (4898, 5768)]