About the Number

199781008

199781007 ← → 199781009

2進数表記:1011111010000110101010010000

漢数字表記:一億九千九百七十八万千八

素因数分解:

2 4 × 7 1 × 17 1 × 317 1 × 331 1

素因数の和:680
約数の個数: 80
約数和(自身を含む): 471291264
約数和(自身を除く): 271510256

約数列:
[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 317, 331, 476, 634, 662, 952, 1268, 1324, 1904, 2219, 2317, 2536, 2648, 4438, 4634, 5072, 5296, 5389, 5627, 8876, 9268, 10778, 11254, 17752, 18536, 21556, 22508, 35504, 37072, 37723, 39389, 43112, 45016, 75446, 78778, 86224, 90032, 104927, 150892, 157556, 209854, 301784, 315112, 419708, 603568, 630224, 734489, 839416, 1468978, 1678832, 1783759, 2937956, 3567518, 5875912, 7135036, 11751824, 12486313, 14270072, 24972626, 28540144, 49945252, 99890504, 199781008]

約数ペア:
[(1, 199781008), (2, 99890504), (4, 49945252), (7, 28540144), (8, 24972626), (14, 14270072), (16, 12486313), (17, 11751824), (28, 7135036), (34, 5875912), (56, 3567518), (68, 2937956), (112, 1783759), (119, 1678832), (136, 1468978), (238, 839416), (272, 734489), (317, 630224), (331, 603568), (476, 419708), (634, 315112), (662, 301784), (952, 209854), (1268, 157556), (1324, 150892), (1904, 104927), (2219, 90032), (2317, 86224), (2536, 78778), (2648, 75446), (4438, 45016), (4634, 43112), (5072, 39389), (5296, 37723), (5389, 37072), (5627, 35504), (8876, 22508), (9268, 21556), (10778, 18536), (11254, 17752)]

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