8678840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12763}}^1$

素因数の和:12791

約数の個数: 32

約数和(自身を含む): 20677680

約数和(自身を除く): 11998840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 12763, 25526, 51052, 63815, 102104, 127630, 216971, 255260, 433942, 510520, 867884, 1084855, 1735768, 2169710, 4339420, 8678840]

約数ペア:

[(1, 8678840), (2, 4339420), (4, 2169710), (5, 1735768), (8, 1084855), (10, 867884), (17, 510520), (20, 433942), (34, 255260), (40, 216971), (68, 127630), (85, 102104), (136, 63815), (170, 51052), (340, 25526), (680, 12763)]