40420960

素因数分解:

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

素因数の和:1255

約数の個数: 48

約数和(自身を含む): 95963616

約数和(自身を除く): 55542656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 983, 1028, 1285, 1966, 2056, 2570, 3932, 4112, 4915, 5140, 7864, 8224, 9830, 10280, 15728, 19660, 20560, 31456, 39320, 41120, 78640, 157280, 252631, 505262, 1010524, 1263155, 2021048, 2526310, 4042096, 5052620, 8084192, 10105240, 20210480, 40420960]

約数ペア:

[(1, 40420960), (2, 20210480), (4, 10105240), (5, 8084192), (8, 5052620), (10, 4042096), (16, 2526310), (20, 2021048), (32, 1263155), (40, 1010524), (80, 505262), (160, 252631), (257, 157280), (514, 78640), (983, 41120), (1028, 39320), (1285, 31456), (1966, 20560), (2056, 19660), (2570, 15728), (3932, 10280), (4112, 9830), (4915, 8224), (5140, 7864)]