161906240

素因数分解:

$2^6\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1867}}^1$

素因数の和:2155

約数の個数: 56

約数和(自身を含む): 387169152

約数和(自身を除く): 225262912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 271, 320, 542, 1084, 1355, 1867, 2168, 2710, 3734, 4336, 5420, 7468, 8672, 9335, 10840, 14936, 17344, 18670, 21680, 29872, 37340, 43360, 59744, 74680, 86720, 119488, 149360, 298720, 505957, 597440, 1011914, 2023828, 2529785, 4047656, 5059570, 8095312, 10119140, 16190624, 20238280, 32381248, 40476560, 80953120, 161906240]

約数ペア:

[(1, 161906240), (2, 80953120), (4, 40476560), (5, 32381248), (8, 20238280), (10, 16190624), (16, 10119140), (20, 8095312), (32, 5059570), (40, 4047656), (64, 2529785), (80, 2023828), (160, 1011914), (271, 597440), (320, 505957), (542, 298720), (1084, 149360), (1355, 119488), (1867, 86720), (2168, 74680), (2710, 59744), (3734, 43360), (4336, 37340), (5420, 29872), (7468, 21680), (8672, 18670), (9335, 17344), (10840, 14936)]