128513835

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{18913}}^1$

素因数の和:19075

約数の個数: 24

約数和(自身を含む): 224244384

約数和(自身を除く): 95730549

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 6795, 18913, 56739, 94565, 170217, 283695, 851085, 2855863, 8567589, 14279315, 25702767, 42837945, 128513835]

約数ペア:

[(1, 128513835), (3, 42837945), (5, 25702767), (9, 14279315), (15, 8567589), (45, 2855863), (151, 851085), (453, 283695), (755, 170217), (1359, 94565), (2265, 56739), (6795, 18913)]