About the Number

12870390

12870389 ← → 12870391

2進数表記:110001000110001011110110

漢数字表記:千二百八十七万三百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 61 1 × 541 1

素因数の和:625
約数の個数: 64
約数和(自身を含む): 33872832
約数和(自身を除く): 21002442

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 541, 610, 793, 915, 1082, 1586, 1623, 1830, 2379, 2705, 3246, 3965, 4758, 5410, 7033, 7930, 8115, 11895, 14066, 16230, 21099, 23790, 33001, 35165, 42198, 66002, 70330, 99003, 105495, 165005, 198006, 210990, 330010, 429013, 495015, 858026, 990030, 1287039, 2145065, 2574078, 4290130, 6435195, 12870390]

約数ペア:
[(1, 12870390), (2, 6435195), (3, 4290130), (5, 2574078), (6, 2145065), (10, 1287039), (13, 990030), (15, 858026), (26, 495015), (30, 429013), (39, 330010), (61, 210990), (65, 198006), (78, 165005), (122, 105495), (130, 99003), (183, 70330), (195, 66002), (305, 42198), (366, 35165), (390, 33001), (541, 23790), (610, 21099), (793, 16230), (915, 14066), (1082, 11895), (1586, 8115), (1623, 7930), (1830, 7033), (2379, 5410), (2705, 4758), (3246, 3965)]

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