1815141520

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{54151}}^1$

素因数の和:54583

約数の個数: 40

約数和(自身を含む): 4230354240

約数和(自身を除く): 2415212720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 2095, 3352, 4190, 6704, 8380, 16760, 33520, 54151, 108302, 216604, 270755, 433208, 541510, 866416, 1083020, 2166040, 4332080, 22689269, 45378538, 90757076, 113446345, 181514152, 226892690, 363028304, 453785380, 907570760, 1815141520]

約数ペア:

[(1, 1815141520), (2, 907570760), (4, 453785380), (5, 363028304), (8, 226892690), (10, 181514152), (16, 113446345), (20, 90757076), (40, 45378538), (80, 22689269), (419, 4332080), (838, 2166040), (1676, 1083020), (2095, 866416), (3352, 541510), (4190, 433208), (6704, 270755), (8380, 216604), (16760, 108302), (33520, 54151)]