18627440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17911}}^1$

素因数の和:17937

約数の個数: 40

約数和(自身を含む): 46642848

約数和(自身を除く): 28015408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17911, 35822, 71644, 89555, 143288, 179110, 232843, 286576, 358220, 465686, 716440, 931372, 1164215, 1432880, 1862744, 2328430, 3725488, 4656860, 9313720, 18627440]

約数ペア:

[(1, 18627440), (2, 9313720), (4, 4656860), (5, 3725488), (8, 2328430), (10, 1862744), (13, 1432880), (16, 1164215), (20, 931372), (26, 716440), (40, 465686), (52, 358220), (65, 286576), (80, 232843), (104, 179110), (130, 143288), (208, 89555), (260, 71644), (520, 35822), (1040, 17911)]