About the Number

1202019980

1202019979 ← → 1202019981

2進数表記:1000111101001010101111010001100

漢数字表記:十二億二百一万九千九百八十

素因数分解:

2 2 × 5 1 × 7 2 × 59 1 × 20789 1

素因数の和:20871
約数の個数: 72
約数和(自身を含む): 2986275600
約数和(自身を除く): 1784255620

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 413, 490, 590, 826, 980, 1180, 1652, 2065, 2891, 4130, 5782, 8260, 11564, 14455, 20789, 28910, 41578, 57820, 83156, 103945, 145523, 207890, 291046, 415780, 582092, 727615, 1018661, 1226551, 1455230, 2037322, 2453102, 2910460, 4074644, 4906204, 5093305, 6132755, 8585857, 10186610, 12265510, 17171714, 20373220, 24531020, 34343428, 42929285, 60100999, 85858570, 120201998, 171717140, 240403996, 300504995, 601009990, 1202019980]

約数ペア:
[(1, 1202019980), (2, 601009990), (4, 300504995), (5, 240403996), (7, 171717140), (10, 120201998), (14, 85858570), (20, 60100999), (28, 42929285), (35, 34343428), (49, 24531020), (59, 20373220), (70, 17171714), (98, 12265510), (118, 10186610), (140, 8585857), (196, 6132755), (236, 5093305), (245, 4906204), (295, 4074644), (413, 2910460), (490, 2453102), (590, 2037322), (826, 1455230), (980, 1226551), (1180, 1018661), (1652, 727615), (2065, 582092), (2891, 415780), (4130, 291046), (5782, 207890), (8260, 145523), (11564, 103945), (14455, 83156), (20789, 57820), (28910, 41578)]

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