78868900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71699}}^1$

素因数の和:71724

約数の個数: 36

約数和(自身を含む): 186706800

約数和(自身を除く): 107837900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 71699, 143398, 286796, 358495, 716990, 788689, 1433980, 1577378, 1792475, 3154756, 3584950, 3943445, 7169900, 7886890, 15773780, 19717225, 39434450, 78868900]

約数ペア:

[(1, 78868900), (2, 39434450), (4, 19717225), (5, 15773780), (10, 7886890), (11, 7169900), (20, 3943445), (22, 3584950), (25, 3154756), (44, 1792475), (50, 1577378), (55, 1433980), (100, 788689), (110, 716990), (220, 358495), (275, 286796), (550, 143398), (1100, 71699)]