19615672720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{85643}}^1$

素因数の和:86072

約数の個数: 80

約数和(自身を含む): 52249691520

約数和(自身を除く): 32634018800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 409, 560, 818, 1636, 2045, 2863, 3272, 4090, 5726, 6544, 8180, 11452, 14315, 16360, 22904, 28630, 32720, 45808, 57260, 85643, 114520, 171286, 229040, 342572, 428215, 599501, 685144, 856430, 1199002, 1370288, 1712860, 2398004, 2997505, 3425720, 4796008, 5995010, 6851440, 9592016, 11990020, 23980040, 35027987, 47960080, 70055974, 140111948, 175139935, 245195909, 280223896, 350279870, 490391818, 560447792, 700559740, 980783636, 1225979545, 1401119480, 1961567272, 2451959090, 2802238960, 3923134544, 4903918180, 9807836360, 19615672720]

約数ペア:

[(1, 19615672720), (2, 9807836360), (4, 4903918180), (5, 3923134544), (7, 2802238960), (8, 2451959090), (10, 1961567272), (14, 1401119480), (16, 1225979545), (20, 980783636), (28, 700559740), (35, 560447792), (40, 490391818), (56, 350279870), (70, 280223896), (80, 245195909), (112, 175139935), (140, 140111948), (280, 70055974), (409, 47960080), (560, 35027987), (818, 23980040), (1636, 11990020), (2045, 9592016), (2863, 6851440), (3272, 5995010), (4090, 4796008), (5726, 3425720), (6544, 2997505), (8180, 2398004), (11452, 1712860), (14315, 1370288), (16360, 1199002), (22904, 856430), (28630, 685144), (32720, 599501), (45808, 428215), (57260, 342572), (85643, 229040), (114520, 171286)]