20165624540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{82531}}^1$

素因数の和:83202

約数の個数: 48

約数和(自身を含む): 44646510720

約数和(自身を除く): 24480886180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 643, 1286, 2572, 3215, 6430, 12217, 12860, 24434, 48868, 61085, 82531, 122170, 165062, 244340, 330124, 412655, 825310, 1568089, 1650620, 3136178, 6272356, 7840445, 15680890, 31361780, 53067433, 106134866, 212269732, 265337165, 530674330, 1008281227, 1061348660, 2016562454, 4033124908, 5041406135, 10082812270, 20165624540]

約数ペア:

[(1, 20165624540), (2, 10082812270), (4, 5041406135), (5, 4033124908), (10, 2016562454), (19, 1061348660), (20, 1008281227), (38, 530674330), (76, 265337165), (95, 212269732), (190, 106134866), (380, 53067433), (643, 31361780), (1286, 15680890), (2572, 7840445), (3215, 6272356), (6430, 3136178), (12217, 1650620), (12860, 1568089), (24434, 825310), (48868, 412655), (61085, 330124), (82531, 244340), (122170, 165062)]