About the Number

388021340

388021339 ← → 388021341

2進数表記:10111001000001011110001011100

漢数字表記:三億八千八百二万千三百四十

素因数分解:

2 2 × 5 1 × 7 1 × 97 1 × 28573 1

素因数の和:28686
約数の個数: 48
約数和(自身を含む): 940884672
約数和(自身を除く): 552863332

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 28573, 57146, 114292, 142865, 200011, 285730, 400022, 571460, 800044, 1000055, 2000110, 2771581, 4000220, 5543162, 11086324, 13857905, 19401067, 27715810, 38802134, 55431620, 77604268, 97005335, 194010670, 388021340]

約数ペア:
[(1, 388021340), (2, 194010670), (4, 97005335), (5, 77604268), (7, 55431620), (10, 38802134), (14, 27715810), (20, 19401067), (28, 13857905), (35, 11086324), (70, 5543162), (97, 4000220), (140, 2771581), (194, 2000110), (388, 1000055), (485, 800044), (679, 571460), (970, 400022), (1358, 285730), (1940, 200011), (2716, 142865), (3395, 114292), (6790, 57146), (13580, 28573)]

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