28204750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 61461504

約数和(自身を除く): 33256754

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 125, 142, 175, 227, 250, 350, 355, 454, 497, 710, 875, 994, 1135, 1589, 1750, 1775, 2270, 2485, 3178, 3550, 4970, 5675, 7945, 8875, 11350, 12425, 15890, 16117, 17750, 24850, 28375, 32234, 39725, 56750, 62125, 79450, 80585, 112819, 124250, 161170, 198625, 225638, 397250, 402925, 564095, 805850, 1128190, 2014625, 2820475, 4029250, 5640950, 14102375, 28204750]

約数ペア:

[(1, 28204750), (2, 14102375), (5, 5640950), (7, 4029250), (10, 2820475), (14, 2014625), (25, 1128190), (35, 805850), (50, 564095), (70, 402925), (71, 397250), (125, 225638), (142, 198625), (175, 161170), (227, 124250), (250, 112819), (350, 80585), (355, 79450), (454, 62125), (497, 56750), (710, 39725), (875, 32234), (994, 28375), (1135, 24850), (1589, 17750), (1750, 16117), (1775, 15890), (2270, 12425), (2485, 11350), (3178, 8875), (3550, 7945), (4970, 5675)]