About the Number

12988000

12987999 ← → 12988001

2進数表記:110001100010111001100000

漢数字表記:千二百九十八万八千

素因数分解:

2 5 × 5 3 × 17 1 × 191 1

素因数の和:233
約数の個数: 96
約数和(自身を含む): 33965568
約数和(自身を除く): 20977568

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 191, 200, 250, 272, 340, 382, 400, 425, 500, 544, 680, 764, 800, 850, 955, 1000, 1360, 1528, 1700, 1910, 2000, 2125, 2720, 3056, 3247, 3400, 3820, 4000, 4250, 4775, 6112, 6494, 6800, 7640, 8500, 9550, 12988, 13600, 15280, 16235, 17000, 19100, 23875, 25976, 30560, 32470, 34000, 38200, 47750, 51952, 64940, 68000, 76400, 81175, 95500, 103904, 129880, 152800, 162350, 191000, 259760, 324700, 382000, 405875, 519520, 649400, 764000, 811750, 1298800, 1623500, 2597600, 3247000, 6494000, 12988000]

約数ペア:
[(1, 12988000), (2, 6494000), (4, 3247000), (5, 2597600), (8, 1623500), (10, 1298800), (16, 811750), (17, 764000), (20, 649400), (25, 519520), (32, 405875), (34, 382000), (40, 324700), (50, 259760), (68, 191000), (80, 162350), (85, 152800), (100, 129880), (125, 103904), (136, 95500), (160, 81175), (170, 76400), (191, 68000), (200, 64940), (250, 51952), (272, 47750), (340, 38200), (382, 34000), (400, 32470), (425, 30560), (500, 25976), (544, 23875), (680, 19100), (764, 17000), (800, 16235), (850, 15280), (955, 13600), (1000, 12988), (1360, 9550), (1528, 8500), (1700, 7640), (1910, 6800), (2000, 6494), (2125, 6112), (2720, 4775), (3056, 4250), (3247, 4000), (3400, 3820)]

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