20333008

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 20351888

約数列:

[1, 2, 4, 8, 16, 61, 83, 122, 166, 244, 251, 332, 488, 502, 664, 976, 1004, 1328, 2008, 4016, 5063, 10126, 15311, 20252, 20833, 30622, 40504, 41666, 61244, 81008, 83332, 122488, 166664, 244976, 333328, 1270813, 2541626, 5083252, 10166504, 20333008]

約数ペア:

[(1, 20333008), (2, 10166504), (4, 5083252), (8, 2541626), (16, 1270813), (61, 333328), (83, 244976), (122, 166664), (166, 122488), (244, 83332), (251, 81008), (332, 61244), (488, 41666), (502, 40504), (664, 30622), (976, 20833), (1004, 20252), (1328, 15311), (2008, 10126), (4016, 5063)]