About the Number

30993280

30993279 ← → 30993281

2進数表記:1110110001110101110000000

漢数字表記:三千九十九万三千二百八十

素因数分解:

2 7 × 5 1 × 79 1 × 613 1

素因数の和:711
約数の個数: 64
約数和(自身を含む): 75153600
約数和(自身を除く): 44160320

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 613, 632, 640, 790, 1226, 1264, 1580, 2452, 2528, 3065, 3160, 4904, 5056, 6130, 6320, 9808, 10112, 12260, 12640, 19616, 24520, 25280, 39232, 48427, 49040, 50560, 78464, 96854, 98080, 193708, 196160, 242135, 387416, 392320, 484270, 774832, 968540, 1549664, 1937080, 3099328, 3874160, 6198656, 7748320, 15496640, 30993280]

約数ペア:
[(1, 30993280), (2, 15496640), (4, 7748320), (5, 6198656), (8, 3874160), (10, 3099328), (16, 1937080), (20, 1549664), (32, 968540), (40, 774832), (64, 484270), (79, 392320), (80, 387416), (128, 242135), (158, 196160), (160, 193708), (316, 98080), (320, 96854), (395, 78464), (613, 50560), (632, 49040), (640, 48427), (790, 39232), (1226, 25280), (1264, 24520), (1580, 19616), (2452, 12640), (2528, 12260), (3065, 10112), (3160, 9808), (4904, 6320), (5056, 6130)]

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