20445988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 39481344

約数和(自身を除く): 19035356

約数列:

[1, 2, 4, 23, 31, 46, 62, 67, 92, 107, 124, 134, 214, 268, 428, 713, 1426, 1541, 2077, 2461, 2852, 3082, 3317, 4154, 4922, 6164, 6634, 7169, 8308, 9844, 13268, 14338, 28676, 47771, 76291, 95542, 152582, 164887, 191084, 222239, 305164, 329774, 444478, 659548, 888956, 5111497, 10222994, 20445988]

約数ペア:

[(1, 20445988), (2, 10222994), (4, 5111497), (23, 888956), (31, 659548), (46, 444478), (62, 329774), (67, 305164), (92, 222239), (107, 191084), (124, 164887), (134, 152582), (214, 95542), (268, 76291), (428, 47771), (713, 28676), (1426, 14338), (1541, 13268), (2077, 9844), (2461, 8308), (2852, 7169), (3082, 6634), (3317, 6164), (4154, 4922)]