890641910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{161641}}^1$

素因数の和:161696

約数の個数: 32

約数和(自身を含む): 1745733600

約数和(自身を除く): 855091690

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 5510, 161641, 323282, 808205, 1616410, 3071179, 4687589, 6142358, 9375178, 15355895, 23437945, 30711790, 46875890, 89064191, 178128382, 445320955, 890641910]

約数ペア:

[(1, 890641910), (2, 445320955), (5, 178128382), (10, 89064191), (19, 46875890), (29, 30711790), (38, 23437945), (58, 15355895), (95, 9375178), (145, 6142358), (190, 4687589), (290, 3071179), (551, 1616410), (1102, 808205), (2755, 323282), (5510, 161641)]