18680328

素因数分解:

$2^3\times 3^3\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 52272000

約数和(自身を除く): 33591672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 197, 216, 394, 439, 591, 788, 878, 1182, 1317, 1576, 1756, 1773, 2364, 2634, 3512, 3546, 3951, 4728, 5268, 5319, 7092, 7902, 10536, 10638, 11853, 14184, 15804, 21276, 23706, 31608, 42552, 47412, 86483, 94824, 172966, 259449, 345932, 518898, 691864, 778347, 1037796, 1556694, 2075592, 2335041, 3113388, 4670082, 6226776, 9340164, 18680328]

約数ペア:

[(1, 18680328), (2, 9340164), (3, 6226776), (4, 4670082), (6, 3113388), (8, 2335041), (9, 2075592), (12, 1556694), (18, 1037796), (24, 778347), (27, 691864), (36, 518898), (54, 345932), (72, 259449), (108, 172966), (197, 94824), (216, 86483), (394, 47412), (439, 42552), (591, 31608), (788, 23706), (878, 21276), (1182, 15804), (1317, 14184), (1576, 11853), (1756, 10638), (1773, 10536), (2364, 7902), (2634, 7092), (3512, 5319), (3546, 5268), (3951, 4728)]