About the Number

131238480

131238479 ← → 131238481

2進数表記:111110100101000101001010000

漢数字表記:一億三千百二十三万八千四百八十

素因数分解:

2 4 × 3 1 × 5 1 × 103 1 × 5309 1

素因数の和:5428
約数の個数: 80
約数和(自身を含む): 410866560
約数和(自身を除く): 279628080

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1648, 2060, 2472, 3090, 4120, 4944, 5309, 6180, 8240, 10618, 12360, 15927, 21236, 24720, 26545, 31854, 42472, 53090, 63708, 79635, 84944, 106180, 127416, 159270, 212360, 254832, 318540, 424720, 546827, 637080, 1093654, 1274160, 1640481, 2187308, 2734135, 3280962, 4374616, 5468270, 6561924, 8202405, 8749232, 10936540, 13123848, 16404810, 21873080, 26247696, 32809620, 43746160, 65619240, 131238480]

約数ペア:
[(1, 131238480), (2, 65619240), (3, 43746160), (4, 32809620), (5, 26247696), (6, 21873080), (8, 16404810), (10, 13123848), (12, 10936540), (15, 8749232), (16, 8202405), (20, 6561924), (24, 5468270), (30, 4374616), (40, 3280962), (48, 2734135), (60, 2187308), (80, 1640481), (103, 1274160), (120, 1093654), (206, 637080), (240, 546827), (309, 424720), (412, 318540), (515, 254832), (618, 212360), (824, 159270), (1030, 127416), (1236, 106180), (1545, 84944), (1648, 79635), (2060, 63708), (2472, 53090), (3090, 42472), (4120, 31854), (4944, 26545), (5309, 24720), (6180, 21236), (8240, 15927), (10618, 12360)]

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