12971480

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2333}}^1$

素因数の和:2483

約数の個数: 32

約数和(自身を含む): 29408400

約数和(自身を除く): 16436920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2333, 2780, 4666, 5560, 9332, 11665, 18664, 23330, 46660, 93320, 324287, 648574, 1297148, 1621435, 2594296, 3242870, 6485740, 12971480]

約数ペア:

[(1, 12971480), (2, 6485740), (4, 3242870), (5, 2594296), (8, 1621435), (10, 1297148), (20, 648574), (40, 324287), (139, 93320), (278, 46660), (556, 23330), (695, 18664), (1112, 11665), (1390, 9332), (2333, 5560), (2780, 4666)]