20157256

素因数分解:

$2^3\times 7^1\times {\mathrm{593}}^1\times {\mathrm{607}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 23180984

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 593, 607, 1186, 1214, 2372, 2428, 4151, 4249, 4744, 4856, 8302, 8498, 16604, 16996, 33208, 33992, 359951, 719902, 1439804, 2519657, 2879608, 5039314, 10078628, 20157256]

約数ペア:

[(1, 20157256), (2, 10078628), (4, 5039314), (7, 2879608), (8, 2519657), (14, 1439804), (28, 719902), (56, 359951), (593, 33992), (607, 33208), (1186, 16996), (1214, 16604), (2372, 8498), (2428, 8302), (4151, 4856), (4249, 4744)]