18439750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 40569984

約数和(自身を除く): 22130234

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 50, 70, 82, 125, 175, 205, 250, 257, 287, 350, 410, 514, 574, 875, 1025, 1285, 1435, 1750, 1799, 2050, 2570, 2870, 3598, 5125, 6425, 7175, 8995, 10250, 10537, 12850, 14350, 17990, 21074, 32125, 35875, 44975, 52685, 64250, 71750, 73759, 89950, 105370, 147518, 224875, 263425, 368795, 449750, 526850, 737590, 1317125, 1843975, 2634250, 3687950, 9219875, 18439750]

約数ペア:

[(1, 18439750), (2, 9219875), (5, 3687950), (7, 2634250), (10, 1843975), (14, 1317125), (25, 737590), (35, 526850), (41, 449750), (50, 368795), (70, 263425), (82, 224875), (125, 147518), (175, 105370), (205, 89950), (250, 73759), (257, 71750), (287, 64250), (350, 52685), (410, 44975), (514, 35875), (574, 32125), (875, 21074), (1025, 17990), (1285, 14350), (1435, 12850), (1750, 10537), (1799, 10250), (2050, 8995), (2570, 7175), (2870, 6425), (3598, 5125)]