123065840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15859}}^1$

素因数の和:15969

約数の個数: 40

約数和(自身を含む): 289096080

約数和(自身を除く): 166030240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 15859, 31718, 63436, 79295, 126872, 158590, 253744, 317180, 634360, 1268720, 1538323, 3076646, 6153292, 7691615, 12306584, 15383230, 24613168, 30766460, 61532920, 123065840]

約数ペア:

[(1, 123065840), (2, 61532920), (4, 30766460), (5, 24613168), (8, 15383230), (10, 12306584), (16, 7691615), (20, 6153292), (40, 3076646), (80, 1538323), (97, 1268720), (194, 634360), (388, 317180), (485, 253744), (776, 158590), (970, 126872), (1552, 79295), (1940, 63436), (3880, 31718), (7760, 15859)]