18722080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9001}}^1$

素因数の和:9029

約数の個数: 48

約数和(自身を含む): 47638584

約数和(自身を除く): 28916504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9001, 18002, 36004, 45005, 72008, 90010, 117013, 144016, 180020, 234026, 288032, 360040, 468052, 585065, 720080, 936104, 1170130, 1440160, 1872208, 2340260, 3744416, 4680520, 9361040, 18722080]

約数ペア:

[(1, 18722080), (2, 9361040), (4, 4680520), (5, 3744416), (8, 2340260), (10, 1872208), (13, 1440160), (16, 1170130), (20, 936104), (26, 720080), (32, 585065), (40, 468052), (52, 360040), (65, 288032), (80, 234026), (104, 180020), (130, 144016), (160, 117013), (208, 90010), (260, 72008), (416, 45005), (520, 36004), (1040, 18002), (2080, 9001)]