28817720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42379}}^1$

素因数の和:42407

約数の個数: 32

約数和(自身を含む): 68655600

約数和(自身を除く): 39837880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42379, 84758, 169516, 211895, 339032, 423790, 720443, 847580, 1440886, 1695160, 2881772, 3602215, 5763544, 7204430, 14408860, 28817720]

約数ペア:

[(1, 28817720), (2, 14408860), (4, 7204430), (5, 5763544), (8, 3602215), (10, 2881772), (17, 1695160), (20, 1440886), (34, 847580), (40, 720443), (68, 423790), (85, 339032), (136, 211895), (170, 169516), (340, 84758), (680, 42379)]