About the Number

238978880

238978879 ← → 238978881

2進数表記:1110001111101000011101000000

漢数字表記:二億三千八百九十七万八千八百八十

素因数分解:

2 6 × 5 1 × 7 2 × 15241 1

素因数の和:15272
約数の個数: 84
約数和(自身を含む): 662021028
約数和(自身を除く): 423042148

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15241, 15680, 30482, 60964, 76205, 106687, 121928, 152410, 213374, 243856, 304820, 426748, 487712, 533435, 609640, 746809, 853496, 975424, 1066870, 1219280, 1493618, 1706992, 2133740, 2438560, 2987236, 3413984, 3734045, 4267480, 4877120, 5974472, 6827968, 7468090, 8534960, 11948944, 14936180, 17069920, 23897888, 29872360, 34139840, 47795776, 59744720, 119489440, 238978880]

約数ペア:
[(1, 238978880), (2, 119489440), (4, 59744720), (5, 47795776), (7, 34139840), (8, 29872360), (10, 23897888), (14, 17069920), (16, 14936180), (20, 11948944), (28, 8534960), (32, 7468090), (35, 6827968), (40, 5974472), (49, 4877120), (56, 4267480), (64, 3734045), (70, 3413984), (80, 2987236), (98, 2438560), (112, 2133740), (140, 1706992), (160, 1493618), (196, 1219280), (224, 1066870), (245, 975424), (280, 853496), (320, 746809), (392, 609640), (448, 533435), (490, 487712), (560, 426748), (784, 304820), (980, 243856), (1120, 213374), (1568, 152410), (1960, 121928), (2240, 106687), (3136, 76205), (3920, 60964), (7840, 30482), (15241, 15680)]

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