64627820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 139708800

約数和(自身を除く): 75080980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 197, 235, 349, 394, 470, 698, 788, 940, 985, 1396, 1745, 1970, 3490, 3940, 6980, 9259, 16403, 18518, 32806, 37036, 46295, 65612, 68753, 82015, 92590, 137506, 164030, 185180, 275012, 328060, 343765, 687530, 1375060, 3231391, 6462782, 12925564, 16156955, 32313910, 64627820]

約数ペア:

[(1, 64627820), (2, 32313910), (4, 16156955), (5, 12925564), (10, 6462782), (20, 3231391), (47, 1375060), (94, 687530), (188, 343765), (197, 328060), (235, 275012), (349, 185180), (394, 164030), (470, 137506), (698, 92590), (788, 82015), (940, 68753), (985, 65612), (1396, 46295), (1745, 37036), (1970, 32806), (3490, 18518), (3940, 16403), (6980, 9259)]