About the Number

71490640

71490639 ← → 71490641

2進数表記:100010000101101110001010000

漢数字表記:七千百四十九万六百四十

素因数分解:

2 4 × 5 1 × 13 1 × 53 1 × 1297 1

素因数の和:1376
約数の個数: 80
約数和(自身を含む): 182519568
約数和(自身を除く): 111028928

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1297, 1378, 2120, 2594, 2756, 3445, 4240, 5188, 5512, 6485, 6890, 10376, 11024, 12970, 13780, 16861, 20752, 25940, 27560, 33722, 51880, 55120, 67444, 68741, 84305, 103760, 134888, 137482, 168610, 269776, 274964, 337220, 343705, 549928, 674440, 687410, 893633, 1099856, 1348880, 1374820, 1787266, 2749640, 3574532, 4468165, 5499280, 7149064, 8936330, 14298128, 17872660, 35745320, 71490640]

約数ペア:
[(1, 71490640), (2, 35745320), (4, 17872660), (5, 14298128), (8, 8936330), (10, 7149064), (13, 5499280), (16, 4468165), (20, 3574532), (26, 2749640), (40, 1787266), (52, 1374820), (53, 1348880), (65, 1099856), (80, 893633), (104, 687410), (106, 674440), (130, 549928), (208, 343705), (212, 337220), (260, 274964), (265, 269776), (424, 168610), (520, 137482), (530, 134888), (689, 103760), (848, 84305), (1040, 68741), (1060, 67444), (1297, 55120), (1378, 51880), (2120, 33722), (2594, 27560), (2756, 25940), (3445, 20752), (4240, 16861), (5188, 13780), (5512, 12970), (6485, 11024), (6890, 10376)]

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