20206305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2789}}^1$

素因数の和:2830

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 21576735

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2789, 7245, 8367, 13945, 19523, 25101, 41835, 58569, 64147, 97615, 125505, 175707, 192441, 292845, 320735, 449029, 577323, 878535, 962205, 1347087, 2245145, 2886615, 4041261, 6735435, 20206305]

約数ペア:

[(1, 20206305), (3, 6735435), (5, 4041261), (7, 2886615), (9, 2245145), (15, 1347087), (21, 962205), (23, 878535), (35, 577323), (45, 449029), (63, 320735), (69, 292845), (105, 192441), (115, 175707), (161, 125505), (207, 97615), (315, 64147), (345, 58569), (483, 41835), (805, 25101), (1035, 19523), (1449, 13945), (2415, 8367), (2789, 7245)]