About the Number

81282480

81282479 ← → 81282481

2進数表記:100110110000100010110110000

漢数字表記:八千百二十八万二千四百八十

素因数分解:

2 4 × 3 1 × 5 1 × 149 1 × 2273 1

素因数の和:2438
約数の個数: 80
約数和(自身を含む): 253778400
約数和(自身を除く): 172495920

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 149, 240, 298, 447, 596, 745, 894, 1192, 1490, 1788, 2235, 2273, 2384, 2980, 3576, 4470, 4546, 5960, 6819, 7152, 8940, 9092, 11365, 11920, 13638, 17880, 18184, 22730, 27276, 34095, 35760, 36368, 45460, 54552, 68190, 90920, 109104, 136380, 181840, 272760, 338677, 545520, 677354, 1016031, 1354708, 1693385, 2032062, 2709416, 3386770, 4064124, 5080155, 5418832, 6773540, 8128248, 10160310, 13547080, 16256496, 20320620, 27094160, 40641240, 81282480]

約数ペア:
[(1, 81282480), (2, 40641240), (3, 27094160), (4, 20320620), (5, 16256496), (6, 13547080), (8, 10160310), (10, 8128248), (12, 6773540), (15, 5418832), (16, 5080155), (20, 4064124), (24, 3386770), (30, 2709416), (40, 2032062), (48, 1693385), (60, 1354708), (80, 1016031), (120, 677354), (149, 545520), (240, 338677), (298, 272760), (447, 181840), (596, 136380), (745, 109104), (894, 90920), (1192, 68190), (1490, 54552), (1788, 45460), (2235, 36368), (2273, 35760), (2384, 34095), (2980, 27276), (3576, 22730), (4470, 18184), (4546, 17880), (5960, 13638), (6819, 11920), (7152, 11365), (8940, 9092)]

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