209618840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{308263}}^1$

素因数の和:308291

約数の個数: 32

約数和(自身を含む): 499387680

約数和(自身を除く): 289768840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 308263, 616526, 1233052, 1541315, 2466104, 3082630, 5240471, 6165260, 10480942, 12330520, 20961884, 26202355, 41923768, 52404710, 104809420, 209618840]

約数ペア:

[(1, 209618840), (2, 104809420), (4, 52404710), (5, 41923768), (8, 26202355), (10, 20961884), (17, 12330520), (20, 10480942), (34, 6165260), (40, 5240471), (68, 3082630), (85, 2466104), (136, 1541315), (170, 1233052), (340, 616526), (680, 308263)]