20672656

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 41515200

約数和(自身を除く): 20842544

約数列:

[1, 2, 4, 8, 16, 59, 61, 118, 122, 236, 244, 359, 472, 488, 718, 944, 976, 1436, 2872, 3599, 5744, 7198, 14396, 21181, 21899, 28792, 42362, 43798, 57584, 84724, 87596, 169448, 175192, 338896, 350384, 1292041, 2584082, 5168164, 10336328, 20672656]

約数ペア:

[(1, 20672656), (2, 10336328), (4, 5168164), (8, 2584082), (16, 1292041), (59, 350384), (61, 338896), (118, 175192), (122, 169448), (236, 87596), (244, 84724), (359, 57584), (472, 43798), (488, 42362), (718, 28792), (944, 21899), (976, 21181), (1436, 14396), (2872, 7198), (3599, 5744)]