28832680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 69498000

約数和(自身を除く): 40665320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 340, 389, 436, 545, 680, 778, 872, 1090, 1556, 1853, 1945, 2180, 3112, 3706, 3890, 4360, 6613, 7412, 7780, 9265, 13226, 14824, 15560, 18530, 26452, 33065, 37060, 42401, 52904, 66130, 74120, 84802, 132260, 169604, 212005, 264520, 339208, 424010, 720817, 848020, 1441634, 1696040, 2883268, 3604085, 5766536, 7208170, 14416340, 28832680]

約数ペア:

[(1, 28832680), (2, 14416340), (4, 7208170), (5, 5766536), (8, 3604085), (10, 2883268), (17, 1696040), (20, 1441634), (34, 848020), (40, 720817), (68, 424010), (85, 339208), (109, 264520), (136, 212005), (170, 169604), (218, 132260), (340, 84802), (389, 74120), (436, 66130), (545, 52904), (680, 42401), (778, 37060), (872, 33065), (1090, 26452), (1556, 18530), (1853, 15560), (1945, 14824), (2180, 13226), (3112, 9265), (3706, 7780), (3890, 7412), (4360, 6613)]