About the Number

123017920

123017919 ← → 123017921

2進数表記:111010101010001101011000000

漢数字表記:一億二千三百一万七千九百二十

素因数分解:

2 6 × 5 1 × 31 1 × 12401 1

素因数の和:12449
約数の個数: 56
約数和(自身を含む): 302410368
約数和(自身を除く): 179392448

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 12401, 24802, 49604, 62005, 99208, 124010, 198416, 248020, 384431, 396832, 496040, 768862, 793664, 992080, 1537724, 1922155, 1984160, 3075448, 3844310, 3968320, 6150896, 7688620, 12301792, 15377240, 24603584, 30754480, 61508960, 123017920]

約数ペア:
[(1, 123017920), (2, 61508960), (4, 30754480), (5, 24603584), (8, 15377240), (10, 12301792), (16, 7688620), (20, 6150896), (31, 3968320), (32, 3844310), (40, 3075448), (62, 1984160), (64, 1922155), (80, 1537724), (124, 992080), (155, 793664), (160, 768862), (248, 496040), (310, 396832), (320, 384431), (496, 248020), (620, 198416), (992, 124010), (1240, 99208), (1984, 62005), (2480, 49604), (4960, 24802), (9920, 12401)]

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