18600040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1609}}^1$

素因数の和:1654

約数の個数: 48

約数和(自身を含む): 44484300

約数和(自身を除く): 25884260

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 1609, 2312, 2890, 3218, 5780, 6436, 8045, 11560, 12872, 16090, 27353, 32180, 54706, 64360, 109412, 136765, 218824, 273530, 465001, 547060, 930002, 1094120, 1860004, 2325005, 3720008, 4650010, 9300020, 18600040]

約数ペア:

[(1, 18600040), (2, 9300020), (4, 4650010), (5, 3720008), (8, 2325005), (10, 1860004), (17, 1094120), (20, 930002), (34, 547060), (40, 465001), (68, 273530), (85, 218824), (136, 136765), (170, 109412), (289, 64360), (340, 54706), (578, 32180), (680, 27353), (1156, 16090), (1445, 12872), (1609, 11560), (2312, 8045), (2890, 6436), (3218, 5780)]