19208180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 42000336

約数和(自身を除く): 22792156

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 101, 148, 185, 202, 257, 370, 404, 505, 514, 740, 1010, 1028, 1285, 2020, 2570, 3737, 5140, 7474, 9509, 14948, 18685, 19018, 25957, 37370, 38036, 47545, 51914, 74740, 95090, 103828, 129785, 190180, 259570, 519140, 960409, 1920818, 3841636, 4802045, 9604090, 19208180]

約数ペア:

[(1, 19208180), (2, 9604090), (4, 4802045), (5, 3841636), (10, 1920818), (20, 960409), (37, 519140), (74, 259570), (101, 190180), (148, 129785), (185, 103828), (202, 95090), (257, 74740), (370, 51914), (404, 47545), (505, 38036), (514, 37370), (740, 25957), (1010, 19018), (1028, 18685), (1285, 14948), (2020, 9509), (2570, 7474), (3737, 5140)]