18139425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 32622912

約数和(自身を除く): 14483487

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 205, 255, 347, 425, 615, 697, 1025, 1041, 1275, 1735, 2091, 3075, 3485, 5205, 5899, 8675, 10455, 14227, 17425, 17697, 26025, 29495, 42681, 52275, 71135, 88485, 147475, 213405, 241859, 355675, 442425, 725577, 1067025, 1209295, 3627885, 6046475, 18139425]

約数ペア:

[(1, 18139425), (3, 6046475), (5, 3627885), (15, 1209295), (17, 1067025), (25, 725577), (41, 442425), (51, 355675), (75, 241859), (85, 213405), (123, 147475), (205, 88485), (255, 71135), (347, 52275), (425, 42681), (615, 29495), (697, 26025), (1025, 17697), (1041, 17425), (1275, 14227), (1735, 10455), (2091, 8675), (3075, 5899), (3485, 5205)]