20258504

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25360696

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 172, 179, 188, 301, 329, 344, 358, 376, 602, 658, 716, 1204, 1253, 1316, 1432, 2021, 2408, 2506, 2632, 4042, 5012, 7697, 8084, 8413, 10024, 14147, 15394, 16168, 16826, 28294, 30788, 33652, 53879, 56588, 58891, 61576, 67304, 107758, 113176, 117782, 215516, 235564, 361759, 431032, 471128, 723518, 1447036, 2532313, 2894072, 5064626, 10129252, 20258504]

約数ペア:

[(1, 20258504), (2, 10129252), (4, 5064626), (7, 2894072), (8, 2532313), (14, 1447036), (28, 723518), (43, 471128), (47, 431032), (56, 361759), (86, 235564), (94, 215516), (172, 117782), (179, 113176), (188, 107758), (301, 67304), (329, 61576), (344, 58891), (358, 56588), (376, 53879), (602, 33652), (658, 30788), (716, 28294), (1204, 16826), (1253, 16168), (1316, 15394), (1432, 14147), (2021, 10024), (2408, 8413), (2506, 8084), (2632, 7697), (4042, 5012)]