20181978192

素因数分解:

$2^4\times 3^1\times {\mathrm{1381}}^1\times {\mathrm{304459}}^1$

素因数の和:305851

約数の個数: 40

約数和(自身を含む): 52174701280

約数和(自身を除く): 31992723088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1381, 2762, 4143, 5524, 8286, 11048, 16572, 22096, 33144, 66288, 304459, 608918, 913377, 1217836, 1826754, 2435672, 3653508, 4871344, 7307016, 14614032, 420457879, 840915758, 1261373637, 1681831516, 2522747274, 3363663032, 5045494548, 6727326064, 10090989096, 20181978192]

約数ペア:

[(1, 20181978192), (2, 10090989096), (3, 6727326064), (4, 5045494548), (6, 3363663032), (8, 2522747274), (12, 1681831516), (16, 1261373637), (24, 840915758), (48, 420457879), (1381, 14614032), (2762, 7307016), (4143, 4871344), (5524, 3653508), (8286, 2435672), (11048, 1826754), (16572, 1217836), (22096, 913377), (33144, 608918), (66288, 304459)]