About the Number

12888720

12888719 ← → 12888721

2進数表記:110001001010101010010000

漢数字表記:千二百八十八万八千七百二十

素因数分解:

2 4 × 3 6 × 5 1 × 13 1 × 17 1

素因数の和:61
約数の個数: 280
約数和(自身を含む): 51231096
約数和(自身を除く): 38342376

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 27, 30, 34, 36, 39, 40, 45, 48, 51, 52, 54, 60, 65, 68, 72, 78, 80, 81, 85, 90, 102, 104, 108, 117, 120, 130, 135, 136, 144, 153, 156, 162, 170, 180, 195, 204, 208, 216, 221, 234, 240, 243, 255, 260, 270, 272, 306, 312, 324, 340, 351, 360, 390, 405, 408, 432, 442, 459, 468, 486, 510, 520, 540, 585, 612, 624, 648, 663, 680, 702, 720, 729, 765, 780, 810, 816, 884, 918, 936, 972, 1020, 1040, 1053, 1080, 1105, 1170, 1215, 1224, 1296, 1326, 1360, 1377, 1404, 1458, 1530, 1560, 1620, 1755, 1768, 1836, 1872, 1944, 1989, 2040, 2106, 2160, 2210, 2295, 2340, 2430, 2448, 2652, 2754, 2808, 2916, 3060, 3120, 3159, 3240, 3315, 3510, 3536, 3645, 3672, 3888, 3978, 4080, 4131, 4212, 4420, 4590, 4680, 4860, 5265, 5304, 5508, 5616, 5832, 5967, 6120, 6318, 6480, 6630, 6885, 7020, 7290, 7344, 7956, 8262, 8424, 8840, 9180, 9360, 9477, 9720, 9945, 10530, 10608, 11016, 11664, 11934, 12240, 12393, 12636, 13260, 13770, 14040, 14580, 15795, 15912, 16524, 16848, 17680, 17901, 18360, 18954, 19440, 19890, 20655, 21060, 22032, 23868, 24786, 25272, 26520, 27540, 28080, 29160, 29835, 31590, 31824, 33048, 35802, 36720, 37908, 39780, 41310, 42120, 47385, 47736, 49572, 50544, 53040, 53703, 55080, 58320, 59670, 61965, 63180, 66096, 71604, 75816, 79560, 82620, 84240, 89505, 94770, 95472, 99144, 107406, 110160, 119340, 123930, 126360, 143208, 151632, 159120, 161109, 165240, 179010, 189540, 198288, 214812, 238680, 247860, 252720, 268515, 286416, 322218, 330480, 358020, 379080, 429624, 477360, 495720, 537030, 644436, 716040, 758160, 805545, 859248, 991440, 1074060, 1288872, 1432080, 1611090, 2148120, 2577744, 3222180, 4296240, 6444360, 12888720]

約数ペア:
[(1, 12888720), (2, 6444360), (3, 4296240), (4, 3222180), (5, 2577744), (6, 2148120), (8, 1611090), (9, 1432080), (10, 1288872), (12, 1074060), (13, 991440), (15, 859248), (16, 805545), (17, 758160), (18, 716040), (20, 644436), (24, 537030), (26, 495720), (27, 477360), (30, 429624), (34, 379080), (36, 358020), (39, 330480), (40, 322218), (45, 286416), (48, 268515), (51, 252720), (52, 247860), (54, 238680), (60, 214812), (65, 198288), (68, 189540), (72, 179010), (78, 165240), (80, 161109), (81, 159120), (85, 151632), (90, 143208), (102, 126360), (104, 123930), (108, 119340), (117, 110160), (120, 107406), (130, 99144), (135, 95472), (136, 94770), (144, 89505), (153, 84240), (156, 82620), (162, 79560), (170, 75816), (180, 71604), (195, 66096), (204, 63180), (208, 61965), (216, 59670), (221, 58320), (234, 55080), (240, 53703), (243, 53040), (255, 50544), (260, 49572), (270, 47736), (272, 47385), (306, 42120), (312, 41310), (324, 39780), (340, 37908), (351, 36720), (360, 35802), (390, 33048), (405, 31824), (408, 31590), (432, 29835), (442, 29160), (459, 28080), (468, 27540), (486, 26520), (510, 25272), (520, 24786), (540, 23868), (585, 22032), (612, 21060), (624, 20655), (648, 19890), (663, 19440), (680, 18954), (702, 18360), (720, 17901), (729, 17680), (765, 16848), (780, 16524), (810, 15912), (816, 15795), (884, 14580), (918, 14040), (936, 13770), (972, 13260), (1020, 12636), (1040, 12393), (1053, 12240), (1080, 11934), (1105, 11664), (1170, 11016), (1215, 10608), (1224, 10530), (1296, 9945), (1326, 9720), (1360, 9477), (1377, 9360), (1404, 9180), (1458, 8840), (1530, 8424), (1560, 8262), (1620, 7956), (1755, 7344), (1768, 7290), (1836, 7020), (1872, 6885), (1944, 6630), (1989, 6480), (2040, 6318), (2106, 6120), (2160, 5967), (2210, 5832), (2295, 5616), (2340, 5508), (2430, 5304), (2448, 5265), (2652, 4860), (2754, 4680), (2808, 4590), (2916, 4420), (3060, 4212), (3120, 4131), (3159, 4080), (3240, 3978), (3315, 3888), (3510, 3672), (3536, 3645)]

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