20235501225

素因数分解:

$3^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{739}}^1\times {\mathrm{929}}^1$

素因数の和:1815

約数の個数: 72

約数和(自身を含む): 36609487200

約数和(自身を除く): 16373985975

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 131, 225, 393, 655, 739, 929, 1179, 1965, 2217, 2787, 3275, 3695, 4645, 5895, 6651, 8361, 9825, 11085, 13935, 18475, 23225, 29475, 33255, 41805, 55425, 69675, 96809, 121699, 166275, 209025, 290427, 365097, 484045, 608495, 686531, 871281, 1095291, 1452135, 1825485, 2059593, 2420225, 3042475, 3432655, 4356405, 5476455, 6178779, 7260675, 9127425, 10297965, 17163275, 21782025, 27382275, 30893895, 51489825, 89935561, 154469475, 269806683, 449677805, 809420049, 1349033415, 2248389025, 4047100245, 6745167075, 20235501225]

約数ペア:

[(1, 20235501225), (3, 6745167075), (5, 4047100245), (9, 2248389025), (15, 1349033415), (25, 809420049), (45, 449677805), (75, 269806683), (131, 154469475), (225, 89935561), (393, 51489825), (655, 30893895), (739, 27382275), (929, 21782025), (1179, 17163275), (1965, 10297965), (2217, 9127425), (2787, 7260675), (3275, 6178779), (3695, 5476455), (4645, 4356405), (5895, 3432655), (6651, 3042475), (8361, 2420225), (9825, 2059593), (11085, 1825485), (13935, 1452135), (18475, 1095291), (23225, 871281), (29475, 686531), (33255, 608495), (41805, 484045), (55425, 365097), (69675, 290427), (96809, 209025), (121699, 166275)]