3143840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{401}}^1$

素因数の和:430

約数の個数: 72

約数和(自身を含む): 8661492

約数和(自身を除く): 5517652

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 401, 490, 560, 784, 802, 980, 1120, 1568, 1604, 1960, 2005, 2807, 3208, 3920, 4010, 5614, 6416, 7840, 8020, 11228, 12832, 14035, 16040, 19649, 22456, 28070, 32080, 39298, 44912, 56140, 64160, 78596, 89824, 98245, 112280, 157192, 196490, 224560, 314384, 392980, 449120, 628768, 785960, 1571920, 3143840]

約数ペア:

[(1, 3143840), (2, 1571920), (4, 785960), (5, 628768), (7, 449120), (8, 392980), (10, 314384), (14, 224560), (16, 196490), (20, 157192), (28, 112280), (32, 98245), (35, 89824), (40, 78596), (49, 64160), (56, 56140), (70, 44912), (80, 39298), (98, 32080), (112, 28070), (140, 22456), (160, 19649), (196, 16040), (224, 14035), (245, 12832), (280, 11228), (392, 8020), (401, 7840), (490, 6416), (560, 5614), (784, 4010), (802, 3920), (980, 3208), (1120, 2807), (1568, 2005), (1604, 1960)]