20750535

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 18561465

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 79, 117, 195, 237, 395, 449, 585, 711, 1027, 1185, 1347, 2245, 3081, 3555, 4041, 5135, 5837, 6735, 9243, 15405, 17511, 20205, 29185, 35471, 46215, 52533, 87555, 106413, 177355, 262665, 319239, 461123, 532065, 1383369, 1596195, 2305615, 4150107, 6916845, 20750535]

約数ペア:

[(1, 20750535), (3, 6916845), (5, 4150107), (9, 2305615), (13, 1596195), (15, 1383369), (39, 532065), (45, 461123), (65, 319239), (79, 262665), (117, 177355), (195, 106413), (237, 87555), (395, 52533), (449, 46215), (585, 35471), (711, 29185), (1027, 20205), (1185, 17511), (1347, 15405), (2245, 9243), (3081, 6735), (3555, 5837), (4041, 5135)]