178518820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{1049}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 383846400

約数和(自身を除く): 205327580

約数列:

[1, 2, 4, 5, 10, 20, 67, 127, 134, 254, 268, 335, 508, 635, 670, 1049, 1270, 1340, 2098, 2540, 4196, 5245, 8509, 10490, 17018, 20980, 34036, 42545, 70283, 85090, 133223, 140566, 170180, 266446, 281132, 351415, 532892, 666115, 702830, 1332230, 1405660, 2664460, 8925941, 17851882, 35703764, 44629705, 89259410, 178518820]

約数ペア:

[(1, 178518820), (2, 89259410), (4, 44629705), (5, 35703764), (10, 17851882), (20, 8925941), (67, 2664460), (127, 1405660), (134, 1332230), (254, 702830), (268, 666115), (335, 532892), (508, 351415), (635, 281132), (670, 266446), (1049, 170180), (1270, 140566), (1340, 133223), (2098, 85090), (2540, 70283), (4196, 42545), (5245, 34036), (8509, 20980), (10490, 17018)]