313069880

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{8011}}^1$

素因数の和:8999

約数の個数: 32

約数和(自身を含む): 705216240

約数和(自身を除く): 392146360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 3908, 4885, 7816, 8011, 9770, 16022, 19540, 32044, 39080, 40055, 64088, 80110, 160220, 320440, 7826747, 15653494, 31306988, 39133735, 62613976, 78267470, 156534940, 313069880]

約数ペア:

[(1, 313069880), (2, 156534940), (4, 78267470), (5, 62613976), (8, 39133735), (10, 31306988), (20, 15653494), (40, 7826747), (977, 320440), (1954, 160220), (3908, 80110), (4885, 64088), (7816, 40055), (8011, 39080), (9770, 32044), (16022, 19540)]