18006560560

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1243547}}^1$

素因数の和:1243741

約数の個数: 40

約数和(自身を含む): 42096586896

約数和(自身を除く): 24090026336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 1243547, 2487094, 4974188, 6217735, 9948376, 12435470, 19896752, 24870940, 49741880, 99483760, 225082007, 450164014, 900328028, 1125410035, 1800656056, 2250820070, 3601312112, 4501640140, 9003280280, 18006560560]

約数ペア:

[(1, 18006560560), (2, 9003280280), (4, 4501640140), (5, 3601312112), (8, 2250820070), (10, 1800656056), (16, 1125410035), (20, 900328028), (40, 450164014), (80, 225082007), (181, 99483760), (362, 49741880), (724, 24870940), (905, 19896752), (1448, 12435470), (1810, 9948376), (2896, 6217735), (3620, 4974188), (7240, 2487094), (14480, 1243547)]