123128385

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 200880000

約数和(自身を除く): 77751615

約数列:

[1, 3, 5, 15, 89, 149, 267, 445, 447, 619, 745, 1335, 1857, 2235, 3095, 9285, 13261, 39783, 55091, 66305, 92231, 165273, 198915, 275455, 276693, 461155, 826365, 1383465, 8208559, 24625677, 41042795, 123128385]

約数ペア:

[(1, 123128385), (3, 41042795), (5, 24625677), (15, 8208559), (89, 1383465), (149, 826365), (267, 461155), (445, 276693), (447, 275455), (619, 198915), (745, 165273), (1335, 92231), (1857, 66305), (2235, 55091), (3095, 39783), (9285, 13261)]