About the Number

212846640

212846639 ← → 212846641

2進数表記:1100101011111100100000110000

漢数字表記:二億千二百八十四万六千六百四十

素因数分解:

2 4 × 3 1 × 5 1 × 71 1 × 12491 1

素因数の和:12578
約数の個数: 80
約数和(自身を含む): 669171456
約数和(自身を除く): 456324816

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 8520, 12491, 17040, 24982, 37473, 49964, 62455, 74946, 99928, 124910, 149892, 187365, 199856, 249820, 299784, 374730, 499640, 599568, 749460, 886861, 999280, 1498920, 1773722, 2660583, 2997840, 3547444, 4434305, 5321166, 7094888, 8868610, 10642332, 13302915, 14189776, 17737220, 21284664, 26605830, 35474440, 42569328, 53211660, 70948880, 106423320, 212846640]

約数ペア:
[(1, 212846640), (2, 106423320), (3, 70948880), (4, 53211660), (5, 42569328), (6, 35474440), (8, 26605830), (10, 21284664), (12, 17737220), (15, 14189776), (16, 13302915), (20, 10642332), (24, 8868610), (30, 7094888), (40, 5321166), (48, 4434305), (60, 3547444), (71, 2997840), (80, 2660583), (120, 1773722), (142, 1498920), (213, 999280), (240, 886861), (284, 749460), (355, 599568), (426, 499640), (568, 374730), (710, 299784), (852, 249820), (1065, 199856), (1136, 187365), (1420, 149892), (1704, 124910), (2130, 99928), (2840, 74946), (3408, 62455), (4260, 49964), (5680, 37473), (8520, 24982), (12491, 17040)]

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