20529184

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:893

約数の個数: 48

約数和(自身を含む): 44294040

約数和(自身を除く): 23764856

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 104, 122, 208, 244, 416, 488, 793, 809, 976, 1586, 1618, 1952, 3172, 3236, 6344, 6472, 10517, 12688, 12944, 21034, 25376, 25888, 42068, 49349, 84136, 98698, 168272, 197396, 336544, 394792, 641537, 789584, 1283074, 1579168, 2566148, 5132296, 10264592, 20529184]

約数ペア:

[(1, 20529184), (2, 10264592), (4, 5132296), (8, 2566148), (13, 1579168), (16, 1283074), (26, 789584), (32, 641537), (52, 394792), (61, 336544), (104, 197396), (122, 168272), (208, 98698), (244, 84136), (416, 49349), (488, 42068), (793, 25888), (809, 25376), (976, 21034), (1586, 12944), (1618, 12688), (1952, 10517), (3172, 6472), (3236, 6344)]