18145880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15643}}^1$

素因数の和:15683

約数の個数: 32

約数和(自身を含む): 42238800

約数和(自身を除く): 24092920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15643, 31286, 62572, 78215, 125144, 156430, 312860, 453647, 625720, 907294, 1814588, 2268235, 3629176, 4536470, 9072940, 18145880]

約数ペア:

[(1, 18145880), (2, 9072940), (4, 4536470), (5, 3629176), (8, 2268235), (10, 1814588), (20, 907294), (29, 625720), (40, 453647), (58, 312860), (116, 156430), (145, 125144), (232, 78215), (290, 62572), (580, 31286), (1160, 15643)]