1800470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 3978720

約数和(自身を除く): 2178250

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 89, 119, 170, 178, 238, 289, 445, 578, 595, 623, 890, 1190, 1246, 1445, 1513, 2023, 2890, 3026, 3115, 4046, 6230, 7565, 10115, 10591, 15130, 20230, 21182, 25721, 51442, 52955, 105910, 128605, 180047, 257210, 360094, 900235, 1800470]

約数ペア:

[(1, 1800470), (2, 900235), (5, 360094), (7, 257210), (10, 180047), (14, 128605), (17, 105910), (34, 52955), (35, 51442), (70, 25721), (85, 21182), (89, 20230), (119, 15130), (170, 10591), (178, 10115), (238, 7565), (289, 6230), (445, 4046), (578, 3115), (595, 3026), (623, 2890), (890, 2023), (1190, 1513), (1246, 1445)]