20129553665

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{4229}}^1$

素因数の和:4434

約数の個数: 48

約数和(自身を含む): 26975488320

約数和(自身を除く): 6845934655

約数列:

[1, 5, 13, 43, 65, 131, 169, 215, 559, 655, 845, 1703, 2795, 4229, 5633, 7267, 8515, 21145, 22139, 28165, 36335, 54977, 73229, 110695, 181847, 274885, 366145, 553999, 714701, 909235, 951977, 2364011, 2769995, 3573505, 4759885, 7201987, 11820055, 23821957, 30732143, 36009935, 93625831, 119109785, 153660715, 309685441, 468129155, 1548427205, 4025910733, 20129553665]

約数ペア:

[(1, 20129553665), (5, 4025910733), (13, 1548427205), (43, 468129155), (65, 309685441), (131, 153660715), (169, 119109785), (215, 93625831), (559, 36009935), (655, 30732143), (845, 23821957), (1703, 11820055), (2795, 7201987), (4229, 4759885), (5633, 3573505), (7267, 2769995), (8515, 2364011), (21145, 951977), (22139, 909235), (28165, 714701), (36335, 553999), (54977, 366145), (73229, 274885), (110695, 181847)]