68963980

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{8599}}^1$

素因数の和:9009

約数の個数: 24

約数和(自身を含む): 145202400

約数和(自身を除く): 76238420

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 8599, 17198, 34396, 42995, 85990, 171980, 3448199, 6896398, 13792796, 17240995, 34481990, 68963980]

約数ペア:

[(1, 68963980), (2, 34481990), (4, 17240995), (5, 13792796), (10, 6896398), (20, 3448199), (401, 171980), (802, 85990), (1604, 42995), (2005, 34396), (4010, 17198), (8020, 8599)]