18251350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 37466352

約数和(自身を除く): 19215002

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 653, 1075, 1118, 1306, 2150, 2795, 3265, 5590, 6530, 8489, 13975, 16325, 16978, 27950, 28079, 32650, 42445, 56158, 84890, 140395, 212225, 280790, 365027, 424450, 701975, 730054, 1403950, 1825135, 3650270, 9125675, 18251350]

約数ペア:

[(1, 18251350), (2, 9125675), (5, 3650270), (10, 1825135), (13, 1403950), (25, 730054), (26, 701975), (43, 424450), (50, 365027), (65, 280790), (86, 212225), (130, 140395), (215, 84890), (325, 56158), (430, 42445), (559, 32650), (650, 28079), (653, 27950), (1075, 16978), (1118, 16325), (1306, 13975), (2150, 8489), (2795, 6530), (3265, 5590)]