About the Number

12481980

12481979 ← → 12481981

2進数表記:101111100111010110111100

漢数字表記:千二百四十八万千九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 113 1 × 263 1

素因数の和:395
約数の個数: 96
約数和(自身を含む): 40449024
約数和(自身を除く): 27967044

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 263, 339, 420, 452, 526, 565, 678, 789, 791, 1052, 1130, 1315, 1356, 1578, 1582, 1695, 1841, 2260, 2373, 2630, 3156, 3164, 3390, 3682, 3945, 3955, 4746, 5260, 5523, 6780, 7364, 7890, 7910, 9205, 9492, 11046, 11865, 15780, 15820, 18410, 22092, 23730, 27615, 29719, 36820, 47460, 55230, 59438, 89157, 110460, 118876, 148595, 178314, 208033, 297190, 356628, 416066, 445785, 594380, 624099, 832132, 891570, 1040165, 1248198, 1783140, 2080330, 2496396, 3120495, 4160660, 6240990, 12481980]

約数ペア:
[(1, 12481980), (2, 6240990), (3, 4160660), (4, 3120495), (5, 2496396), (6, 2080330), (7, 1783140), (10, 1248198), (12, 1040165), (14, 891570), (15, 832132), (20, 624099), (21, 594380), (28, 445785), (30, 416066), (35, 356628), (42, 297190), (60, 208033), (70, 178314), (84, 148595), (105, 118876), (113, 110460), (140, 89157), (210, 59438), (226, 55230), (263, 47460), (339, 36820), (420, 29719), (452, 27615), (526, 23730), (565, 22092), (678, 18410), (789, 15820), (791, 15780), (1052, 11865), (1130, 11046), (1315, 9492), (1356, 9205), (1578, 7910), (1582, 7890), (1695, 7364), (1841, 6780), (2260, 5523), (2373, 5260), (2630, 4746), (3156, 3955), (3164, 3945), (3390, 3682)]

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