71891680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{64189}}^1$

素因数の和:64211

約数の個数: 48

約数和(自身を含む): 194110560

約数和(自身を除く): 122218880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 64189, 128378, 256756, 320945, 449323, 513512, 641890, 898646, 1027024, 1283780, 1797292, 2054048, 2246615, 2567560, 3594584, 4493230, 5135120, 7189168, 8986460, 10270240, 14378336, 17972920, 35945840, 71891680]

約数ペア:

[(1, 71891680), (2, 35945840), (4, 17972920), (5, 14378336), (7, 10270240), (8, 8986460), (10, 7189168), (14, 5135120), (16, 4493230), (20, 3594584), (28, 2567560), (32, 2246615), (35, 2054048), (40, 1797292), (56, 1283780), (70, 1027024), (80, 898646), (112, 641890), (140, 513512), (160, 449323), (224, 320945), (280, 256756), (560, 128378), (1120, 64189)]