20192005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6903035

約数列:

[1, 5, 17, 31, 79, 85, 97, 155, 395, 485, 527, 1343, 1649, 2449, 2635, 3007, 6715, 7663, 8245, 12245, 15035, 38315, 41633, 51119, 130271, 208165, 237553, 255595, 651355, 1187765, 4038401, 20192005]

約数ペア:

[(1, 20192005), (5, 4038401), (17, 1187765), (31, 651355), (79, 255595), (85, 237553), (97, 208165), (155, 130271), (395, 51119), (485, 41633), (527, 38315), (1343, 15035), (1649, 12245), (2449, 8245), (2635, 7663), (3007, 6715)]