281232020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{17599}}^1$

素因数の和:17672

約数の個数: 48

約数和(自身を含む): 638668800

約数和(自身を除く): 357436780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 7990, 15980, 17599, 35198, 70396, 87995, 175990, 299183, 351980, 598366, 827153, 1196732, 1495915, 1654306, 2991830, 3308612, 4135765, 5983660, 8271530, 14061601, 16543060, 28123202, 56246404, 70308005, 140616010, 281232020]

約数ペア:

[(1, 281232020), (2, 140616010), (4, 70308005), (5, 56246404), (10, 28123202), (17, 16543060), (20, 14061601), (34, 8271530), (47, 5983660), (68, 4135765), (85, 3308612), (94, 2991830), (170, 1654306), (188, 1495915), (235, 1196732), (340, 827153), (470, 598366), (799, 351980), (940, 299183), (1598, 175990), (3196, 87995), (3995, 70396), (7990, 35198), (15980, 17599)]