18444620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 40920768

約数和(自身を除く): 22476148

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 101, 115, 202, 230, 397, 404, 460, 505, 794, 1010, 1588, 1985, 2020, 2323, 3970, 4646, 7940, 9131, 9292, 11615, 18262, 23230, 36524, 40097, 45655, 46460, 80194, 91310, 160388, 182620, 200485, 400970, 801940, 922231, 1844462, 3688924, 4611155, 9222310, 18444620]

約数ペア:

[(1, 18444620), (2, 9222310), (4, 4611155), (5, 3688924), (10, 1844462), (20, 922231), (23, 801940), (46, 400970), (92, 200485), (101, 182620), (115, 160388), (202, 91310), (230, 80194), (397, 46460), (404, 45655), (460, 40097), (505, 36524), (794, 23230), (1010, 18262), (1588, 11615), (1985, 9292), (2020, 9131), (2323, 7940), (3970, 4646)]