About the Number

29881890

29881889 ← → 29881891

2進数表記:1110001111111011000100010

漢数字表記:二千九百八十八万千八百九十

素因数分解:

2 1 × 3 2 × 5 1 × 29 1 × 107 2

素因数の和:256
約数の個数: 72
約数和(自身を含む): 81130140
約数和(自身を除く): 51248250

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 107, 145, 174, 214, 261, 290, 321, 435, 522, 535, 642, 870, 963, 1070, 1305, 1605, 1926, 2610, 3103, 3210, 4815, 6206, 9309, 9630, 11449, 15515, 18618, 22898, 27927, 31030, 34347, 46545, 55854, 57245, 68694, 93090, 103041, 114490, 139635, 171735, 206082, 279270, 332021, 343470, 515205, 664042, 996063, 1030410, 1660105, 1992126, 2988189, 3320210, 4980315, 5976378, 9960630, 14940945, 29881890]

約数ペア:
[(1, 29881890), (2, 14940945), (3, 9960630), (5, 5976378), (6, 4980315), (9, 3320210), (10, 2988189), (15, 1992126), (18, 1660105), (29, 1030410), (30, 996063), (45, 664042), (58, 515205), (87, 343470), (90, 332021), (107, 279270), (145, 206082), (174, 171735), (214, 139635), (261, 114490), (290, 103041), (321, 93090), (435, 68694), (522, 57245), (535, 55854), (642, 46545), (870, 34347), (963, 31030), (1070, 27927), (1305, 22898), (1605, 18618), (1926, 15515), (2610, 11449), (3103, 9630), (3210, 9309), (4815, 6206)]

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