20210480

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{983}}^1$

素因数の和:1253

約数の個数: 40

約数和(自身を含む): 47220192

約数和(自身を除く): 27009712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 983, 1028, 1285, 1966, 2056, 2570, 3932, 4112, 4915, 5140, 7864, 9830, 10280, 15728, 19660, 20560, 39320, 78640, 252631, 505262, 1010524, 1263155, 2021048, 2526310, 4042096, 5052620, 10105240, 20210480]

約数ペア:

[(1, 20210480), (2, 10105240), (4, 5052620), (5, 4042096), (8, 2526310), (10, 2021048), (16, 1263155), (20, 1010524), (40, 505262), (80, 252631), (257, 78640), (514, 39320), (983, 20560), (1028, 19660), (1285, 15728), (1966, 10280), (2056, 9830), (2570, 7864), (3932, 5140), (4112, 4915)]