2181970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 4707288

約数和(自身を除く): 2525318

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 73, 98, 122, 146, 245, 305, 365, 427, 490, 511, 610, 730, 854, 1022, 2135, 2555, 2989, 3577, 4270, 4453, 5110, 5978, 7154, 8906, 14945, 17885, 22265, 29890, 31171, 35770, 44530, 62342, 155855, 218197, 311710, 436394, 1090985, 2181970]

約数ペア:

[(1, 2181970), (2, 1090985), (5, 436394), (7, 311710), (10, 218197), (14, 155855), (35, 62342), (49, 44530), (61, 35770), (70, 31171), (73, 29890), (98, 22265), (122, 17885), (146, 14945), (245, 8906), (305, 7154), (365, 5978), (427, 5110), (490, 4453), (511, 4270), (610, 3577), (730, 2989), (854, 2555), (1022, 2135)]