About the Number

221401640

221401639 ← → 221401641

2進数表記:1101001100100101001000101000

漢数字表記:二億二千百四十万千六百四十

素因数分解:

2 3 × 5 1 × 41 1 × 127 1 × 1063 1

素因数の和:1242
約数の個数: 64
約数和(自身を含む): 514805760
約数和(自身を除く): 293404120

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 328, 410, 508, 635, 820, 1016, 1063, 1270, 1640, 2126, 2540, 4252, 5080, 5207, 5315, 8504, 10414, 10630, 20828, 21260, 26035, 41656, 42520, 43583, 52070, 87166, 104140, 135001, 174332, 208280, 217915, 270002, 348664, 435830, 540004, 675005, 871660, 1080008, 1350010, 1743320, 2700020, 5400040, 5535041, 11070082, 22140164, 27675205, 44280328, 55350410, 110700820, 221401640]

約数ペア:
[(1, 221401640), (2, 110700820), (4, 55350410), (5, 44280328), (8, 27675205), (10, 22140164), (20, 11070082), (40, 5535041), (41, 5400040), (82, 2700020), (127, 1743320), (164, 1350010), (205, 1080008), (254, 871660), (328, 675005), (410, 540004), (508, 435830), (635, 348664), (820, 270002), (1016, 217915), (1063, 208280), (1270, 174332), (1640, 135001), (2126, 104140), (2540, 87166), (4252, 52070), (5080, 43583), (5207, 42520), (5315, 41656), (8504, 26035), (10414, 21260), (10630, 20828)]

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