About the Number

2947920

2947919 ← → 2947921

2進数表記:1011001111101101010000

漢数字表記:二百九十四万七千九百二十

素因数分解:

2 4 × 3 1 × 5 1 × 71 1 × 173 1

素因数の和:260
約数の個数: 80
約数和(自身を含む): 9320832
約数和(自身を除く): 6372912

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 173, 213, 240, 284, 346, 355, 426, 519, 568, 692, 710, 852, 865, 1038, 1065, 1136, 1384, 1420, 1704, 1730, 2076, 2130, 2595, 2768, 2840, 3408, 3460, 4152, 4260, 5190, 5680, 6920, 8304, 8520, 10380, 12283, 13840, 17040, 20760, 24566, 36849, 41520, 49132, 61415, 73698, 98264, 122830, 147396, 184245, 196528, 245660, 294792, 368490, 491320, 589584, 736980, 982640, 1473960, 2947920]

約数ペア:
[(1, 2947920), (2, 1473960), (3, 982640), (4, 736980), (5, 589584), (6, 491320), (8, 368490), (10, 294792), (12, 245660), (15, 196528), (16, 184245), (20, 147396), (24, 122830), (30, 98264), (40, 73698), (48, 61415), (60, 49132), (71, 41520), (80, 36849), (120, 24566), (142, 20760), (173, 17040), (213, 13840), (240, 12283), (284, 10380), (346, 8520), (355, 8304), (426, 6920), (519, 5680), (568, 5190), (692, 4260), (710, 4152), (852, 3460), (865, 3408), (1038, 2840), (1065, 2768), (1136, 2595), (1384, 2130), (1420, 2076), (1704, 1730)]

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