28404280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41771}}^1$

素因数の和:41799

約数の個数: 32

約数和(自身を含む): 67670640

約数和(自身を除く): 39266360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41771, 83542, 167084, 208855, 334168, 417710, 710107, 835420, 1420214, 1670840, 2840428, 3550535, 5680856, 7101070, 14202140, 28404280]

約数ペア:

[(1, 28404280), (2, 14202140), (4, 7101070), (5, 5680856), (8, 3550535), (10, 2840428), (17, 1670840), (20, 1420214), (34, 835420), (40, 710107), (68, 417710), (85, 334168), (136, 208855), (170, 167084), (340, 83542), (680, 41771)]