About the Number

2100081720

2100081719 ← → 2100081721

2進数表記:1111101001011001011010000111000

漢数字表記:二十一億八万千七百二十

素因数分解:

2 3 × 3 1 × 5 1 × 11 1 × 353 1 × 4507 1

素因数の和:4885
約数の個数: 128
約数和(自身を含む): 6893994240
約数和(自身を除く): 4793912520

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 353, 440, 660, 706, 1059, 1320, 1412, 1765, 2118, 2824, 3530, 3883, 4236, 4507, 5295, 7060, 7766, 8472, 9014, 10590, 11649, 13521, 14120, 15532, 18028, 19415, 21180, 22535, 23298, 27042, 31064, 36056, 38830, 42360, 45070, 46596, 49577, 54084, 58245, 67605, 77660, 90140, 93192, 99154, 108168, 116490, 135210, 148731, 155320, 180280, 198308, 232980, 247885, 270420, 297462, 396616, 465960, 495770, 540840, 594924, 743655, 991540, 1189848, 1487310, 1590971, 1983080, 2974620, 3181942, 4772913, 5949240, 6363884, 7954855, 9545826, 12727768, 15909710, 17500681, 19091652, 23864565, 31819420, 35001362, 38183304, 47729130, 52502043, 63638840, 70002724, 87503405, 95458260, 105004086, 140005448, 175006810, 190916520, 210008172, 262510215, 350013620, 420016344, 525020430, 700027240, 1050040860, 2100081720]

約数ペア:
[(1, 2100081720), (2, 1050040860), (3, 700027240), (4, 525020430), (5, 420016344), (6, 350013620), (8, 262510215), (10, 210008172), (11, 190916520), (12, 175006810), (15, 140005448), (20, 105004086), (22, 95458260), (24, 87503405), (30, 70002724), (33, 63638840), (40, 52502043), (44, 47729130), (55, 38183304), (60, 35001362), (66, 31819420), (88, 23864565), (110, 19091652), (120, 17500681), (132, 15909710), (165, 12727768), (220, 9545826), (264, 7954855), (330, 6363884), (353, 5949240), (440, 4772913), (660, 3181942), (706, 2974620), (1059, 1983080), (1320, 1590971), (1412, 1487310), (1765, 1189848), (2118, 991540), (2824, 743655), (3530, 594924), (3883, 540840), (4236, 495770), (4507, 465960), (5295, 396616), (7060, 297462), (7766, 270420), (8472, 247885), (9014, 232980), (10590, 198308), (11649, 180280), (13521, 155320), (14120, 148731), (15532, 135210), (18028, 116490), (19415, 108168), (21180, 99154), (22535, 93192), (23298, 90140), (27042, 77660), (31064, 67605), (36056, 58245), (38830, 54084), (42360, 49577), (45070, 46596)]

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