201990512875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{122021}}^1$

素因数の和:122113

約数の個数: 64

約数和(自身を含む): 287815731840

約数和(自身を除く): 85825218965

約数列:

[1, 5, 17, 19, 25, 41, 85, 95, 125, 205, 323, 425, 475, 697, 779, 1025, 1615, 2125, 2375, 3485, 3895, 5125, 8075, 13243, 17425, 19475, 40375, 66215, 87125, 97375, 122021, 331075, 610105, 1655375, 2074357, 2318399, 3050525, 5002861, 10371785, 11591995, 15252625, 25014305, 39412783, 51858925, 57959975, 85048637, 95054359, 125071525, 197063915, 259294625, 289799875, 425243185, 475271795, 625357625, 985319575, 1615924103, 2126215925, 2376358975, 4926597875, 8079620515, 10631079625, 11881794875, 40398102575, 201990512875]

約数ペア:

[(1, 201990512875), (5, 40398102575), (17, 11881794875), (19, 10631079625), (25, 8079620515), (41, 4926597875), (85, 2376358975), (95, 2126215925), (125, 1615924103), (205, 985319575), (323, 625357625), (425, 475271795), (475, 425243185), (697, 289799875), (779, 259294625), (1025, 197063915), (1615, 125071525), (2125, 95054359), (2375, 85048637), (3485, 57959975), (3895, 51858925), (5125, 39412783), (8075, 25014305), (13243, 15252625), (17425, 11591995), (19475, 10371785), (40375, 5002861), (66215, 3050525), (87125, 2318399), (97375, 2074357), (122021, 1655375), (331075, 610105)]