201908005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 287400960

約数和(自身を除く): 85492955

約数列:

[1, 5, 13, 29, 43, 47, 53, 65, 145, 215, 235, 265, 377, 559, 611, 689, 1247, 1363, 1537, 1885, 2021, 2279, 2491, 2795, 3055, 3445, 6235, 6815, 7685, 10105, 11395, 12455, 16211, 17719, 19981, 26273, 29627, 32383, 58609, 66091, 72239, 81055, 88595, 99905, 107113, 131365, 148135, 161915, 293045, 330455, 361195, 535565, 761917, 859183, 939107, 1392469, 3106277, 3809585, 4295915, 4695535, 6962345, 15531385, 40381601, 201908005]

約数ペア:

[(1, 201908005), (5, 40381601), (13, 15531385), (29, 6962345), (43, 4695535), (47, 4295915), (53, 3809585), (65, 3106277), (145, 1392469), (215, 939107), (235, 859183), (265, 761917), (377, 535565), (559, 361195), (611, 330455), (689, 293045), (1247, 161915), (1363, 148135), (1537, 131365), (1885, 107113), (2021, 99905), (2279, 88595), (2491, 81055), (2795, 72239), (3055, 66091), (3445, 58609), (6235, 32383), (6815, 29627), (7685, 26273), (10105, 19981), (11395, 17719), (12455, 16211)]