1620565575

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{857}}^1\times {\mathrm{1327}}^1$

素因数の和:2216

約数の個数: 48

約数和(自身を含む): 2825771520

約数和(自身を除く): 1205205945

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 857, 1327, 1425, 2571, 3981, 4285, 6635, 12855, 16283, 19905, 21425, 25213, 33175, 48849, 64275, 75639, 81415, 99525, 126065, 244245, 378195, 407075, 630325, 1137239, 1221225, 1890975, 3411717, 5686195, 17058585, 21607541, 28430975, 64822623, 85292925, 108037705, 324113115, 540188525, 1620565575]

約数ペア:

[(1, 1620565575), (3, 540188525), (5, 324113115), (15, 108037705), (19, 85292925), (25, 64822623), (57, 28430975), (75, 21607541), (95, 17058585), (285, 5686195), (475, 3411717), (857, 1890975), (1327, 1221225), (1425, 1137239), (2571, 630325), (3981, 407075), (4285, 378195), (6635, 244245), (12855, 126065), (16283, 99525), (19905, 81415), (21425, 75639), (25213, 64275), (33175, 48849)]