20472705

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{701}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 39424320

約数和(自身を除く): 18951615

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 59, 99, 165, 177, 295, 495, 531, 649, 701, 885, 1947, 2103, 2655, 3245, 3505, 5841, 6309, 7711, 9735, 10515, 23133, 29205, 31545, 38555, 41359, 69399, 115665, 124077, 206795, 346995, 372231, 454949, 620385, 1364847, 1861155, 2274745, 4094541, 6824235, 20472705]

約数ペア:

[(1, 20472705), (3, 6824235), (5, 4094541), (9, 2274745), (11, 1861155), (15, 1364847), (33, 620385), (45, 454949), (55, 372231), (59, 346995), (99, 206795), (165, 124077), (177, 115665), (295, 69399), (495, 41359), (531, 38555), (649, 31545), (701, 29205), (885, 23133), (1947, 10515), (2103, 9735), (2655, 7711), (3245, 6309), (3505, 5841)]