28840910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 61313760

約数和(自身を除く): 32472850

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 710, 829, 994, 1658, 2485, 3479, 4145, 4970, 5803, 6958, 8290, 11606, 17395, 29015, 34790, 40621, 58030, 58859, 81242, 117718, 203105, 294295, 406210, 412013, 588590, 824026, 2060065, 2884091, 4120130, 5768182, 14420455, 28840910]

約数ペア:

[(1, 28840910), (2, 14420455), (5, 5768182), (7, 4120130), (10, 2884091), (14, 2060065), (35, 824026), (49, 588590), (70, 412013), (71, 406210), (98, 294295), (142, 203105), (245, 117718), (355, 81242), (490, 58859), (497, 58030), (710, 40621), (829, 34790), (994, 29015), (1658, 17395), (2485, 11606), (3479, 8290), (4145, 6958), (4970, 5803)]