About the Number

388450140

388450139 ← → 388450141

2進数表記:10111001001110100011101011100

漢数字表記:三億八千八百四十五万百四十

素因数分解:

2 2 × 3 1 × 5 1 × 13 1 × 498013 1

素因数の和:498038
約数の個数: 48
約数和(自身を含む): 1171328928
約数和(自身を除く): 782878788

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 498013, 996026, 1494039, 1992052, 2490065, 2988078, 4980130, 5976156, 6474169, 7470195, 9960260, 12948338, 14940390, 19422507, 25896676, 29880780, 32370845, 38845014, 64741690, 77690028, 97112535, 129483380, 194225070, 388450140]

約数ペア:
[(1, 388450140), (2, 194225070), (3, 129483380), (4, 97112535), (5, 77690028), (6, 64741690), (10, 38845014), (12, 32370845), (13, 29880780), (15, 25896676), (20, 19422507), (26, 14940390), (30, 12948338), (39, 9960260), (52, 7470195), (60, 6474169), (65, 5976156), (78, 4980130), (130, 2988078), (156, 2490065), (195, 1992052), (260, 1494039), (390, 996026), (780, 498013)]

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