129408040

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{8447}}^1$

素因数の和:8841

約数の個数: 32

約数和(自身を含む): 291962880

約数和(自身を除く): 162554840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 7660, 8447, 15320, 16894, 33788, 42235, 67576, 84470, 168940, 337880, 3235201, 6470402, 12940804, 16176005, 25881608, 32352010, 64704020, 129408040]

約数ペア:

[(1, 129408040), (2, 64704020), (4, 32352010), (5, 25881608), (8, 16176005), (10, 12940804), (20, 6470402), (40, 3235201), (383, 337880), (766, 168940), (1532, 84470), (1915, 67576), (3064, 42235), (3830, 33788), (7660, 16894), (8447, 15320)]