18156120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2216

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 37105320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2131, 2840, 4260, 4262, 6393, 8520, 8524, 10655, 12786, 17048, 21310, 25572, 31965, 42620, 51144, 63930, 85240, 127860, 151301, 255720, 302602, 453903, 605204, 756505, 907806, 1210408, 1513010, 1815612, 2269515, 3026020, 3631224, 4539030, 6052040, 9078060, 18156120]

約数ペア:

[(1, 18156120), (2, 9078060), (3, 6052040), (4, 4539030), (5, 3631224), (6, 3026020), (8, 2269515), (10, 1815612), (12, 1513010), (15, 1210408), (20, 907806), (24, 756505), (30, 605204), (40, 453903), (60, 302602), (71, 255720), (120, 151301), (142, 127860), (213, 85240), (284, 63930), (355, 51144), (426, 42620), (568, 31965), (710, 25572), (852, 21310), (1065, 17048), (1420, 12786), (1704, 10655), (2130, 8524), (2131, 8520), (2840, 6393), (4260, 4262)]