145720820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4933}}^1$

素因数の和:5160

約数の個数: 48

約数和(自身を含む): 351458688

約数和(自身を除く): 205737868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 4933, 5908, 7385, 9866, 14770, 19732, 24665, 29540, 34531, 49330, 69062, 98660, 138124, 172655, 345310, 690620, 1040863, 2081726, 4163452, 5204315, 7286041, 10408630, 14572082, 20817260, 29144164, 36430205, 72860410, 145720820]

約数ペア:

[(1, 145720820), (2, 72860410), (4, 36430205), (5, 29144164), (7, 20817260), (10, 14572082), (14, 10408630), (20, 7286041), (28, 5204315), (35, 4163452), (70, 2081726), (140, 1040863), (211, 690620), (422, 345310), (844, 172655), (1055, 138124), (1477, 98660), (2110, 69062), (2954, 49330), (4220, 34531), (4933, 29540), (5908, 24665), (7385, 19732), (9866, 14770)]