20154294745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{823}}^1$

素因数の和:1190

約数の個数: 64

約数和(自身を含む): 27907891200

約数和(自身を除く): 7753596455

約数列:

[1, 5, 13, 19, 65, 79, 95, 247, 251, 395, 823, 1027, 1235, 1255, 1501, 3263, 4115, 4769, 5135, 7505, 10699, 15637, 16315, 19513, 19829, 23845, 53495, 61997, 65017, 78185, 97565, 99145, 203281, 206573, 257777, 309985, 325085, 376751, 845221, 1016405, 1032865, 1235323, 1288885, 1883755, 2685449, 3924887, 4226105, 4897763, 6176615, 13427245, 16059199, 16319267, 19624435, 24488815, 51023531, 80295995, 81596335, 212150471, 255117655, 310066073, 1060752355, 1550330365, 4030858949, 20154294745]

約数ペア:

[(1, 20154294745), (5, 4030858949), (13, 1550330365), (19, 1060752355), (65, 310066073), (79, 255117655), (95, 212150471), (247, 81596335), (251, 80295995), (395, 51023531), (823, 24488815), (1027, 19624435), (1235, 16319267), (1255, 16059199), (1501, 13427245), (3263, 6176615), (4115, 4897763), (4769, 4226105), (5135, 3924887), (7505, 2685449), (10699, 1883755), (15637, 1288885), (16315, 1235323), (19513, 1032865), (19829, 1016405), (23845, 845221), (53495, 376751), (61997, 325085), (65017, 309985), (78185, 257777), (97565, 206573), (99145, 203281)]