313752080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1$

素因数の和:688

約数の個数: 80

約数和(自身を含む): 751618560

約数和(自身を除く): 437866480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 223, 344, 409, 430, 446, 688, 818, 860, 892, 1115, 1636, 1720, 1784, 2045, 2230, 3272, 3440, 3568, 4090, 4460, 6544, 8180, 8920, 9589, 16360, 17587, 17840, 19178, 32720, 35174, 38356, 47945, 70348, 76712, 87935, 91207, 95890, 140696, 153424, 175870, 182414, 191780, 281392, 351740, 364828, 383560, 456035, 703480, 729656, 767120, 912070, 1406960, 1459312, 1824140, 3648280, 3921901, 7296560, 7843802, 15687604, 19609505, 31375208, 39219010, 62750416, 78438020, 156876040, 313752080]

約数ペア:

[(1, 313752080), (2, 156876040), (4, 78438020), (5, 62750416), (8, 39219010), (10, 31375208), (16, 19609505), (20, 15687604), (40, 7843802), (43, 7296560), (80, 3921901), (86, 3648280), (172, 1824140), (215, 1459312), (223, 1406960), (344, 912070), (409, 767120), (430, 729656), (446, 703480), (688, 456035), (818, 383560), (860, 364828), (892, 351740), (1115, 281392), (1636, 191780), (1720, 182414), (1784, 175870), (2045, 153424), (2230, 140696), (3272, 95890), (3440, 91207), (3568, 87935), (4090, 76712), (4460, 70348), (6544, 47945), (8180, 38356), (8920, 35174), (9589, 32720), (16360, 19178), (17587, 17840)]