About the Number

2151400

2151399 ← → 2151401

2進数表記:1000001101001111101000

漢数字表記:二百十五万千四百

素因数分解:

2 3 × 5 2 × 31 1 × 347 1

素因数の和:394
約数の個数: 48
約数和(自身を含む): 5178240
約数和(自身を除く): 3026840

約数列:
[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 347, 620, 694, 775, 1240, 1388, 1550, 1735, 2776, 3100, 3470, 6200, 6940, 8675, 10757, 13880, 17350, 21514, 34700, 43028, 53785, 69400, 86056, 107570, 215140, 268925, 430280, 537850, 1075700, 2151400]

約数ペア:
[(1, 2151400), (2, 1075700), (4, 537850), (5, 430280), (8, 268925), (10, 215140), (20, 107570), (25, 86056), (31, 69400), (40, 53785), (50, 43028), (62, 34700), (100, 21514), (124, 17350), (155, 13880), (200, 10757), (248, 8675), (310, 6940), (347, 6200), (620, 3470), (694, 3100), (775, 2776), (1240, 1735), (1388, 1550)]

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