18030280

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3989}}^1$

素因数の和:4113

約数の個数: 32

約数和(自身を含む): 40937400

約数和(自身を除く): 22907120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 3989, 4520, 7978, 15956, 19945, 31912, 39890, 79780, 159560, 450757, 901514, 1803028, 2253785, 3606056, 4507570, 9015140, 18030280]

約数ペア:

[(1, 18030280), (2, 9015140), (4, 4507570), (5, 3606056), (8, 2253785), (10, 1803028), (20, 901514), (40, 450757), (113, 159560), (226, 79780), (452, 39890), (565, 31912), (904, 19945), (1130, 15956), (2260, 7978), (3989, 4520)]