About the Number

207000780

207000779 ← → 207000781

2進数表記:1100010101101001010011001100

漢数字表記:二億七百万七百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 331 1 × 1489 1

素因数の和:1839
約数の個数: 96
約数和(自身を含む): 664849920
約数和(自身を除く): 457849140

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 331, 420, 662, 993, 1324, 1489, 1655, 1986, 2317, 2978, 3310, 3972, 4467, 4634, 4965, 5956, 6620, 6951, 7445, 8934, 9268, 9930, 10423, 11585, 13902, 14890, 17868, 19860, 20846, 22335, 23170, 27804, 29780, 31269, 34755, 41692, 44670, 46340, 52115, 62538, 69510, 89340, 104230, 125076, 139020, 156345, 208460, 312690, 492859, 625380, 985718, 1478577, 1971436, 2464295, 2957154, 3450013, 4928590, 5914308, 6900026, 7392885, 9857180, 10350039, 13800052, 14785770, 17250065, 20700078, 29571540, 34500130, 41400156, 51750195, 69000260, 103500390, 207000780]

約数ペア:
[(1, 207000780), (2, 103500390), (3, 69000260), (4, 51750195), (5, 41400156), (6, 34500130), (7, 29571540), (10, 20700078), (12, 17250065), (14, 14785770), (15, 13800052), (20, 10350039), (21, 9857180), (28, 7392885), (30, 6900026), (35, 5914308), (42, 4928590), (60, 3450013), (70, 2957154), (84, 2464295), (105, 1971436), (140, 1478577), (210, 985718), (331, 625380), (420, 492859), (662, 312690), (993, 208460), (1324, 156345), (1489, 139020), (1655, 125076), (1986, 104230), (2317, 89340), (2978, 69510), (3310, 62538), (3972, 52115), (4467, 46340), (4634, 44670), (4965, 41692), (5956, 34755), (6620, 31269), (6951, 29780), (7445, 27804), (8934, 23170), (9268, 22335), (9930, 20846), (10423, 19860), (11585, 17868), (13902, 14890)]

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