389865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 737280

約数和(自身を除く): 347415

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 79, 105, 141, 235, 237, 329, 395, 553, 705, 987, 1185, 1645, 1659, 2765, 3713, 4935, 8295, 11139, 18565, 25991, 55695, 77973, 129955, 389865]

約数ペア:

[(1, 389865), (3, 129955), (5, 77973), (7, 55695), (15, 25991), (21, 18565), (35, 11139), (47, 8295), (79, 4935), (105, 3713), (141, 2765), (235, 1659), (237, 1645), (329, 1185), (395, 987), (553, 705)]