About the Number

72996820

72996819 ← → 72996821

2進数表記:100010110011101011111010100

漢数字表記:七千二百九十九万六千八百二十

素因数分解:

2 2 × 5 1 × 13 1 × 223 1 × 1259 1

素因数の和:1504
約数の個数: 48
約数和(自身を含む): 165957120
約数和(自身を除く): 92960300

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 223, 260, 446, 892, 1115, 1259, 2230, 2518, 2899, 4460, 5036, 5798, 6295, 11596, 12590, 14495, 16367, 25180, 28990, 32734, 57980, 65468, 81835, 163670, 280757, 327340, 561514, 1123028, 1403785, 2807570, 3649841, 5615140, 7299682, 14599364, 18249205, 36498410, 72996820]

約数ペア:
[(1, 72996820), (2, 36498410), (4, 18249205), (5, 14599364), (10, 7299682), (13, 5615140), (20, 3649841), (26, 2807570), (52, 1403785), (65, 1123028), (130, 561514), (223, 327340), (260, 280757), (446, 163670), (892, 81835), (1115, 65468), (1259, 57980), (2230, 32734), (2518, 28990), (2899, 25180), (4460, 16367), (5036, 14495), (5798, 12590), (6295, 11596)]

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