18272560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3217}}^1$

素因数の和:3301

約数の個数: 40

約数和(自身を含む): 43095456

約数和(自身を除く): 24822896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3217, 5680, 6434, 12868, 16085, 25736, 32170, 51472, 64340, 128680, 228407, 257360, 456814, 913628, 1142035, 1827256, 2284070, 3654512, 4568140, 9136280, 18272560]

約数ペア:

[(1, 18272560), (2, 9136280), (4, 4568140), (5, 3654512), (8, 2284070), (10, 1827256), (16, 1142035), (20, 913628), (40, 456814), (71, 257360), (80, 228407), (142, 128680), (284, 64340), (355, 51472), (568, 32170), (710, 25736), (1136, 16085), (1420, 12868), (2840, 6434), (3217, 5680)]