About the Number

208021290

208021289 ← → 208021291

2進数表記:1100011001100010011100101010

漢数字表記:二億八百二万千二百九十

素因数分解:

2 1 × 3 1 × 5 1 × 41 1 × 53 1 × 3191 1

素因数の和:3295
約数の個数: 64
約数和(自身を含む): 521240832
約数和(自身を除く): 313219542

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 41, 53, 82, 106, 123, 159, 205, 246, 265, 318, 410, 530, 615, 795, 1230, 1590, 2173, 3191, 4346, 6382, 6519, 9573, 10865, 13038, 15955, 19146, 21730, 31910, 32595, 47865, 65190, 95730, 130831, 169123, 261662, 338246, 392493, 507369, 654155, 784986, 845615, 1014738, 1308310, 1691230, 1962465, 2536845, 3924930, 5073690, 6934043, 13868086, 20802129, 34670215, 41604258, 69340430, 104010645, 208021290]

約数ペア:
[(1, 208021290), (2, 104010645), (3, 69340430), (5, 41604258), (6, 34670215), (10, 20802129), (15, 13868086), (30, 6934043), (41, 5073690), (53, 3924930), (82, 2536845), (106, 1962465), (123, 1691230), (159, 1308310), (205, 1014738), (246, 845615), (265, 784986), (318, 654155), (410, 507369), (530, 392493), (615, 338246), (795, 261662), (1230, 169123), (1590, 130831), (2173, 95730), (3191, 65190), (4346, 47865), (6382, 32595), (6519, 31910), (9573, 21730), (10865, 19146), (13038, 15955)]

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