20475690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9613}}^1$

素因数の和:9694

約数の個数: 32

約数和(自身を含む): 49838976

約数和(自身を除く): 29363286

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 9613, 19226, 28839, 48065, 57678, 96130, 144195, 288390, 682523, 1365046, 2047569, 3412615, 4095138, 6825230, 10237845, 20475690]

約数ペア:

[(1, 20475690), (2, 10237845), (3, 6825230), (5, 4095138), (6, 3412615), (10, 2047569), (15, 1365046), (30, 682523), (71, 288390), (142, 144195), (213, 96130), (355, 57678), (426, 48065), (710, 28839), (1065, 19226), (2130, 9613)]