20178574990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5438969}}^1$

素因数の和:5439036

約数の個数: 32

約数和(自身を含む): 42293430720

約数和(自身を除く): 22114855730

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5438969, 10877938, 27194845, 38072783, 54389690, 76145566, 190363915, 288265357, 380727830, 576530714, 1441326785, 2017857499, 2882653570, 4035714998, 10089287495, 20178574990]

約数ペア:

[(1, 20178574990), (2, 10089287495), (5, 4035714998), (7, 2882653570), (10, 2017857499), (14, 1441326785), (35, 576530714), (53, 380727830), (70, 288265357), (106, 190363915), (265, 76145566), (371, 54389690), (530, 38072783), (742, 27194845), (1855, 10877938), (3710, 5438969)]