About the Number

72912105

72912104 ← → 72912106

2進数表記:100010110001000110011101001

漢数字表記:七千二百九十一万二千百五

素因数分解:

3 2 × 5 1 × 7 1 × 211 1 × 1097 1

素因数の和:1326
約数の個数: 48
約数和(自身を含む): 145252224
約数和(自身を除く): 72340119

約数列:
[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 211, 315, 633, 1055, 1097, 1477, 1899, 3165, 3291, 4431, 5485, 7385, 7679, 9495, 9873, 13293, 16455, 22155, 23037, 38395, 49365, 66465, 69111, 115185, 231467, 345555, 694401, 1157335, 1620269, 2083203, 3472005, 4860807, 8101345, 10416015, 14582421, 24304035, 72912105]

約数ペア:
[(1, 72912105), (3, 24304035), (5, 14582421), (7, 10416015), (9, 8101345), (15, 4860807), (21, 3472005), (35, 2083203), (45, 1620269), (63, 1157335), (105, 694401), (211, 345555), (315, 231467), (633, 115185), (1055, 69111), (1097, 66465), (1477, 49365), (1899, 38395), (3165, 23037), (3291, 22155), (4431, 16455), (5485, 13293), (7385, 9873), (7679, 9495)]

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