128179120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39079}}^1$

素因数の和:39133

約数の個数: 40

約数和(自身を含む): 305292960

約数和(自身を除く): 177113840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 39079, 78158, 156316, 195395, 312632, 390790, 625264, 781580, 1563160, 1602239, 3126320, 3204478, 6408956, 8011195, 12817912, 16022390, 25635824, 32044780, 64089560, 128179120]

約数ペア:

[(1, 128179120), (2, 64089560), (4, 32044780), (5, 25635824), (8, 16022390), (10, 12817912), (16, 8011195), (20, 6408956), (40, 3204478), (41, 3126320), (80, 1602239), (82, 1563160), (164, 781580), (205, 625264), (328, 390790), (410, 312632), (656, 195395), (820, 156316), (1640, 78158), (3280, 39079)]