665655880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{337}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 1664582400

約数和(自身を除く): 998926520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 113, 115, 152, 184, 190, 226, 230, 337, 380, 437, 452, 460, 565, 674, 760, 874, 904, 920, 1130, 1348, 1685, 1748, 2147, 2185, 2260, 2599, 2696, 3370, 3496, 4294, 4370, 4520, 5198, 6403, 6740, 7751, 8588, 8740, 10396, 10735, 12806, 12995, 13480, 15502, 17176, 17480, 20792, 21470, 25612, 25990, 31004, 32015, 38081, 38755, 42940, 49381, 51224, 51980, 62008, 64030, 76162, 77510, 85880, 98762, 103960, 128060, 147269, 152324, 155020, 190405, 197524, 246905, 256120, 294538, 304648, 310040, 380810, 395048, 493810, 589076, 723539, 736345, 761620, 875863, 987620, 1178152, 1447078, 1472690, 1523240, 1751726, 1975240, 2894156, 2945380, 3503452, 3617695, 4379315, 5788312, 5890760, 7006904, 7235390, 8758630, 14470780, 16641397, 17517260, 28941560, 33282794, 35034520, 66565588, 83206985, 133131176, 166413970, 332827940, 665655880]

約数ペア:

[(1, 665655880), (2, 332827940), (4, 166413970), (5, 133131176), (8, 83206985), (10, 66565588), (19, 35034520), (20, 33282794), (23, 28941560), (38, 17517260), (40, 16641397), (46, 14470780), (76, 8758630), (92, 7235390), (95, 7006904), (113, 5890760), (115, 5788312), (152, 4379315), (184, 3617695), (190, 3503452), (226, 2945380), (230, 2894156), (337, 1975240), (380, 1751726), (437, 1523240), (452, 1472690), (460, 1447078), (565, 1178152), (674, 987620), (760, 875863), (874, 761620), (904, 736345), (920, 723539), (1130, 589076), (1348, 493810), (1685, 395048), (1748, 380810), (2147, 310040), (2185, 304648), (2260, 294538), (2599, 256120), (2696, 246905), (3370, 197524), (3496, 190405), (4294, 155020), (4370, 152324), (4520, 147269), (5198, 128060), (6403, 103960), (6740, 98762), (7751, 85880), (8588, 77510), (8740, 76162), (10396, 64030), (10735, 62008), (12806, 51980), (12995, 51224), (13480, 49381), (15502, 42940), (17176, 38755), (17480, 38081), (20792, 32015), (21470, 31004), (25612, 25990)]