857385

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:119

約数の個数: 40

約数和(自身を含む): 1611720

約数和(自身を除く): 754335

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 73, 81, 87, 135, 145, 219, 261, 365, 405, 435, 657, 783, 1095, 1305, 1971, 2117, 2349, 3285, 3915, 5913, 6351, 9855, 10585, 11745, 19053, 29565, 31755, 57159, 95265, 171477, 285795, 857385]

約数ペア:

[(1, 857385), (3, 285795), (5, 171477), (9, 95265), (15, 57159), (27, 31755), (29, 29565), (45, 19053), (73, 11745), (81, 10585), (87, 9855), (135, 6351), (145, 5913), (219, 3915), (261, 3285), (365, 2349), (405, 2117), (435, 1971), (657, 1305), (783, 1095)]