79764762020

素因数分解:

$2^2\times 5^1\times {\mathrm{3989}}^1\times {\mathrm{999809}}^1$

素因数の和:1003807

約数の個数: 24

約数和(自身を含む): 167548159800

約数和(自身を除く): 87783397780

約数列:

[1, 2, 4, 5, 10, 20, 3989, 7978, 15956, 19945, 39890, 79780, 999809, 1999618, 3999236, 4999045, 9998090, 19996180, 3988238101, 7976476202, 15952952404, 19941190505, 39882381010, 79764762020]

約数ペア:

[(1, 79764762020), (2, 39882381010), (4, 19941190505), (5, 15952952404), (10, 7976476202), (20, 3988238101), (3989, 19996180), (7978, 9998090), (15956, 4999045), (19945, 3999236), (39890, 1999618), (79780, 999809)]