About the Number

87871290

87871289 ← → 87871291

2進数表記:101001111001100111100111010

漢数字表記:八千七百八十七万千二百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 233 1 × 967 1

素因数の和:1223
約数の個数: 64
約数和(自身を含む): 228324096
約数和(自身を除く): 140452806

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 233, 390, 466, 699, 967, 1165, 1398, 1934, 2330, 2901, 3029, 3495, 4835, 5802, 6058, 6990, 9087, 9670, 12571, 14505, 15145, 18174, 25142, 29010, 30290, 37713, 45435, 62855, 75426, 90870, 125710, 188565, 225311, 377130, 450622, 675933, 1126555, 1351866, 2253110, 2929043, 3379665, 5858086, 6759330, 8787129, 14645215, 17574258, 29290430, 43935645, 87871290]

約数ペア:
[(1, 87871290), (2, 43935645), (3, 29290430), (5, 17574258), (6, 14645215), (10, 8787129), (13, 6759330), (15, 5858086), (26, 3379665), (30, 2929043), (39, 2253110), (65, 1351866), (78, 1126555), (130, 675933), (195, 450622), (233, 377130), (390, 225311), (466, 188565), (699, 125710), (967, 90870), (1165, 75426), (1398, 62855), (1934, 45435), (2330, 37713), (2901, 30290), (3029, 29010), (3495, 25142), (4835, 18174), (5802, 15145), (6058, 14505), (6990, 12571), (9087, 9670)]

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