211989320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311749}}^1$

素因数の和:311777

約数の個数: 32

約数和(自身を含む): 505035000

約数和(自身を除く): 293045680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 311749, 623498, 1246996, 1558745, 2493992, 3117490, 5299733, 6234980, 10599466, 12469960, 21198932, 26498665, 42397864, 52997330, 105994660, 211989320]

約数ペア:

[(1, 211989320), (2, 105994660), (4, 52997330), (5, 42397864), (8, 26498665), (10, 21198932), (17, 12469960), (20, 10599466), (34, 6234980), (40, 5299733), (68, 3117490), (85, 2493992), (136, 1558745), (170, 1246996), (340, 623498), (680, 311749)]