18118730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 20294710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 103, 206, 245, 359, 490, 515, 718, 721, 1030, 1442, 1795, 2513, 3590, 3605, 5026, 5047, 7210, 10094, 12565, 17591, 25130, 25235, 35182, 36977, 50470, 73954, 87955, 175910, 184885, 258839, 369770, 517678, 1294195, 1811873, 2588390, 3623746, 9059365, 18118730]

約数ペア:

[(1, 18118730), (2, 9059365), (5, 3623746), (7, 2588390), (10, 1811873), (14, 1294195), (35, 517678), (49, 369770), (70, 258839), (98, 184885), (103, 175910), (206, 87955), (245, 73954), (359, 50470), (490, 36977), (515, 35182), (718, 25235), (721, 25130), (1030, 17591), (1442, 12565), (1795, 10094), (2513, 7210), (3590, 5047), (3605, 5026)]