28588300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21991}}^1$

素因数の和:22018

約数の個数: 36

約数和(自身を含む): 66811696

約数和(自身を除く): 38223396

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 21991, 43982, 87964, 109955, 219910, 285883, 439820, 549775, 571766, 1099550, 1143532, 1429415, 2199100, 2858830, 5717660, 7147075, 14294150, 28588300]

約数ペア:

[(1, 28588300), (2, 14294150), (4, 7147075), (5, 5717660), (10, 2858830), (13, 2199100), (20, 1429415), (25, 1143532), (26, 1099550), (50, 571766), (52, 549775), (65, 439820), (100, 285883), (130, 219910), (260, 109955), (325, 87964), (650, 43982), (1300, 21991)]