20292016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1223}}^1$

素因数の和:1309

約数の個数: 40

約数和(自身を含む): 42345504

約数和(自身を除く): 22053488

約数列:

[1, 2, 4, 8, 16, 17, 34, 61, 68, 122, 136, 244, 272, 488, 976, 1037, 1223, 2074, 2446, 4148, 4892, 8296, 9784, 16592, 19568, 20791, 41582, 74603, 83164, 149206, 166328, 298412, 332656, 596824, 1193648, 1268251, 2536502, 5073004, 10146008, 20292016]

約数ペア:

[(1, 20292016), (2, 10146008), (4, 5073004), (8, 2536502), (16, 1268251), (17, 1193648), (34, 596824), (61, 332656), (68, 298412), (122, 166328), (136, 149206), (244, 83164), (272, 74603), (488, 41582), (976, 20791), (1037, 19568), (1223, 16592), (2074, 9784), (2446, 8296), (4148, 4892)]