18641790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4817}}^1$

素因数の和:4873

約数の個数: 48

約数和(自身を含む): 49606128

約数和(自身を除く): 30964338

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 4817, 9634, 14451, 24085, 28902, 43353, 48170, 72255, 86706, 144510, 207131, 216765, 414262, 433530, 621393, 1035655, 1242786, 1864179, 2071310, 3106965, 3728358, 6213930, 9320895, 18641790]

約数ペア:

[(1, 18641790), (2, 9320895), (3, 6213930), (5, 3728358), (6, 3106965), (9, 2071310), (10, 1864179), (15, 1242786), (18, 1035655), (30, 621393), (43, 433530), (45, 414262), (86, 216765), (90, 207131), (129, 144510), (215, 86706), (258, 72255), (387, 48170), (430, 43353), (645, 28902), (774, 24085), (1290, 14451), (1935, 9634), (3870, 4817)]