28702120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42209}}^1$

素因数の和:42237

約数の個数: 32

約数和(自身を含む): 68380200

約数和(自身を除く): 39678080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42209, 84418, 168836, 211045, 337672, 422090, 717553, 844180, 1435106, 1688360, 2870212, 3587765, 5740424, 7175530, 14351060, 28702120]

約数ペア:

[(1, 28702120), (2, 14351060), (4, 7175530), (5, 5740424), (8, 3587765), (10, 2870212), (17, 1688360), (20, 1435106), (34, 844180), (40, 717553), (68, 422090), (85, 337672), (136, 211045), (170, 168836), (340, 84418), (680, 42209)]