About the Number

81384900

81384899 ← → 81384901

2進数表記:100110110011101010111000100

漢数字表記:八千百三十八万四千九百

素因数分解:

2 2 × 3 1 × 5 2 × 67 1 × 4049 1

素因数の和:4133
約数の個数: 72
約数和(自身を含む): 239047200
約数和(自身を除く): 157662300

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 67, 75, 100, 134, 150, 201, 268, 300, 335, 402, 670, 804, 1005, 1340, 1675, 2010, 3350, 4020, 4049, 5025, 6700, 8098, 10050, 12147, 16196, 20100, 20245, 24294, 40490, 48588, 60735, 80980, 101225, 121470, 202450, 242940, 271283, 303675, 404900, 542566, 607350, 813849, 1085132, 1214700, 1356415, 1627698, 2712830, 3255396, 4069245, 5425660, 6782075, 8138490, 13564150, 16276980, 20346225, 27128300, 40692450, 81384900]

約数ペア:
[(1, 81384900), (2, 40692450), (3, 27128300), (4, 20346225), (5, 16276980), (6, 13564150), (10, 8138490), (12, 6782075), (15, 5425660), (20, 4069245), (25, 3255396), (30, 2712830), (50, 1627698), (60, 1356415), (67, 1214700), (75, 1085132), (100, 813849), (134, 607350), (150, 542566), (201, 404900), (268, 303675), (300, 271283), (335, 242940), (402, 202450), (670, 121470), (804, 101225), (1005, 80980), (1340, 60735), (1675, 48588), (2010, 40490), (3350, 24294), (4020, 20245), (4049, 20100), (5025, 16196), (6700, 12147), (8098, 10050)]

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