28351420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74609}}^1$

素因数の和:74637

約数の個数: 24

約数和(自身を含む): 62672400

約数和(自身を除く): 34320980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74609, 149218, 298436, 373045, 746090, 1417571, 1492180, 2835142, 5670284, 7087855, 14175710, 28351420]

約数ペア:

[(1, 28351420), (2, 14175710), (4, 7087855), (5, 5670284), (10, 2835142), (19, 1492180), (20, 1417571), (38, 746090), (76, 373045), (95, 298436), (190, 149218), (380, 74609)]