172921420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{1523}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 415795968

約数和(自身を除く): 242874548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 811, 1523, 1622, 3046, 3244, 4055, 5677, 6092, 7615, 8110, 10661, 11354, 15230, 16220, 21322, 22708, 28385, 30460, 42644, 53305, 56770, 106610, 113540, 213220, 1235153, 2470306, 4940612, 6175765, 8646071, 12351530, 17292142, 24703060, 34584284, 43230355, 86460710, 172921420]

約数ペア:

[(1, 172921420), (2, 86460710), (4, 43230355), (5, 34584284), (7, 24703060), (10, 17292142), (14, 12351530), (20, 8646071), (28, 6175765), (35, 4940612), (70, 2470306), (140, 1235153), (811, 213220), (1523, 113540), (1622, 106610), (3046, 56770), (3244, 53305), (4055, 42644), (5677, 30460), (6092, 28385), (7615, 22708), (8110, 21322), (10661, 16220), (11354, 15230)]