About the Number

31888090

31888089 ← → 31888091

2進数表記:1111001101001001011011010

漢数字表記:三千百八十八万八千九十

素因数分解:

2 1 × 5 1 × 13 1 × 17 1 × 47 1 × 307 1

素因数の和:391
約数の個数: 64
約数和(自身を含む): 67060224
約数和(自身を除く): 35172134

約数列:
[1, 2, 5, 10, 13, 17, 26, 34, 47, 65, 85, 94, 130, 170, 221, 235, 307, 442, 470, 611, 614, 799, 1105, 1222, 1535, 1598, 2210, 3055, 3070, 3991, 3995, 5219, 6110, 7982, 7990, 10387, 10438, 14429, 19955, 20774, 26095, 28858, 39910, 51935, 52190, 67847, 72145, 103870, 135694, 144290, 187577, 245293, 339235, 375154, 490586, 678470, 937885, 1226465, 1875770, 2452930, 3188809, 6377618, 15944045, 31888090]

約数ペア:
[(1, 31888090), (2, 15944045), (5, 6377618), (10, 3188809), (13, 2452930), (17, 1875770), (26, 1226465), (34, 937885), (47, 678470), (65, 490586), (85, 375154), (94, 339235), (130, 245293), (170, 187577), (221, 144290), (235, 135694), (307, 103870), (442, 72145), (470, 67847), (611, 52190), (614, 51935), (799, 39910), (1105, 28858), (1222, 26095), (1535, 20774), (1598, 19955), (2210, 14429), (3055, 10438), (3070, 10387), (3991, 7990), (3995, 7982), (5219, 6110)]

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