128080520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{168527}}^1$

素因数の和:168557

約数の個数: 32

約数和(自身を含む): 303350400

約数和(自身を除く): 175269880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 168527, 337054, 674108, 842635, 1348216, 1685270, 3202013, 3370540, 6404026, 6741080, 12808052, 16010065, 25616104, 32020130, 64040260, 128080520]

約数ペア:

[(1, 128080520), (2, 64040260), (4, 32020130), (5, 25616104), (8, 16010065), (10, 12808052), (19, 6741080), (20, 6404026), (38, 3370540), (40, 3202013), (76, 1685270), (95, 1348216), (152, 842635), (190, 674108), (380, 337054), (760, 168527)]