20655840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1871}}^1$

素因数の和:1912

約数の個数: 96

約数和(自身を含む): 67931136

約数和(自身を除く): 47275296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 1871, 2208, 2760, 3680, 3742, 5520, 5613, 7484, 9355, 11040, 11226, 14968, 18710, 22452, 28065, 29936, 37420, 43033, 44904, 56130, 59872, 74840, 86066, 89808, 112260, 129099, 149680, 172132, 179616, 215165, 224520, 258198, 299360, 344264, 430330, 449040, 516396, 645495, 688528, 860660, 898080, 1032792, 1290990, 1377056, 1721320, 2065584, 2581980, 3442640, 4131168, 5163960, 6885280, 10327920, 20655840]

約数ペア:

[(1, 20655840), (2, 10327920), (3, 6885280), (4, 5163960), (5, 4131168), (6, 3442640), (8, 2581980), (10, 2065584), (12, 1721320), (15, 1377056), (16, 1290990), (20, 1032792), (23, 898080), (24, 860660), (30, 688528), (32, 645495), (40, 516396), (46, 449040), (48, 430330), (60, 344264), (69, 299360), (80, 258198), (92, 224520), (96, 215165), (115, 179616), (120, 172132), (138, 149680), (160, 129099), (184, 112260), (230, 89808), (240, 86066), (276, 74840), (345, 59872), (368, 56130), (460, 44904), (480, 43033), (552, 37420), (690, 29936), (736, 28065), (920, 22452), (1104, 18710), (1380, 14968), (1840, 11226), (1871, 11040), (2208, 9355), (2760, 7484), (3680, 5613), (3742, 5520)]