18103760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9839}}^1$

素因数の和:9875

約数の個数: 40

約数和(自身を含む): 43925760

約数和(自身を除く): 25822000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9839, 19678, 39356, 49195, 78712, 98390, 157424, 196780, 226297, 393560, 452594, 787120, 905188, 1131485, 1810376, 2262970, 3620752, 4525940, 9051880, 18103760]

約数ペア:

[(1, 18103760), (2, 9051880), (4, 4525940), (5, 3620752), (8, 2262970), (10, 1810376), (16, 1131485), (20, 905188), (23, 787120), (40, 452594), (46, 393560), (80, 226297), (92, 196780), (115, 157424), (184, 98390), (230, 78712), (368, 49195), (460, 39356), (920, 19678), (1840, 9839)]