About the Number

2901990

2901989 ← → 2901991

2進数表記:1011000100011111100110

漢数字表記:二百九十万千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 13 1 × 1063 1

素因数の和:1093
約数の個数: 64
約数和(自身を含む): 8580096
約数和(自身を除く): 5678106

約数列:
[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1063, 1365, 2126, 2730, 3189, 5315, 6378, 7441, 10630, 13819, 14882, 15945, 22323, 27638, 31890, 37205, 41457, 44646, 69095, 74410, 82914, 96733, 111615, 138190, 193466, 207285, 223230, 290199, 414570, 483665, 580398, 967330, 1450995, 2901990]

約数ペア:
[(1, 2901990), (2, 1450995), (3, 967330), (5, 580398), (6, 483665), (7, 414570), (10, 290199), (13, 223230), (14, 207285), (15, 193466), (21, 138190), (26, 111615), (30, 96733), (35, 82914), (39, 74410), (42, 69095), (65, 44646), (70, 41457), (78, 37205), (91, 31890), (105, 27638), (130, 22323), (182, 15945), (195, 14882), (210, 13819), (273, 10630), (390, 7441), (455, 6378), (546, 5315), (910, 3189), (1063, 2730), (1365, 2126)]

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