20187501040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1\times {\mathrm{1543}}^1$

素因数の和:2007

約数の個数: 160

約数和(自身を含む): 54698213376

約数和(自身を除く): 34510712336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 383, 427, 488, 560, 610, 766, 854, 976, 1220, 1532, 1543, 1708, 1915, 2135, 2440, 2681, 3064, 3086, 3416, 3830, 4270, 4880, 5362, 6128, 6172, 6832, 7660, 7715, 8540, 10724, 10801, 12344, 13405, 15320, 15430, 17080, 21448, 21602, 23363, 24688, 26810, 30640, 30860, 34160, 42896, 43204, 46726, 53620, 54005, 61720, 86408, 93452, 94123, 107240, 108010, 116815, 123440, 163541, 172816, 186904, 188246, 214480, 216020, 233630, 327082, 373808, 376492, 432040, 467260, 470615, 590969, 654164, 658861, 752984, 817705, 864080, 934520, 941230, 1181938, 1308328, 1317722, 1505968, 1635410, 1869040, 1882460, 2363876, 2616656, 2635444, 2954845, 3270820, 3294305, 3764920, 4136783, 4727752, 5270888, 5909690, 6541640, 6588610, 7529840, 8273566, 9455504, 10541776, 11819380, 13083280, 13177220, 16547132, 20683915, 23638760, 26354440, 33094264, 36049109, 41367830, 47277520, 52708880, 66188528, 72098218, 82735660, 144196436, 165471320, 180245545, 252343763, 288392872, 330942640, 360491090, 504687526, 576785744, 720982180, 1009375052, 1261718815, 1441964360, 2018750104, 2523437630, 2883928720, 4037500208, 5046875260, 10093750520, 20187501040]

約数ペア:

[(1, 20187501040), (2, 10093750520), (4, 5046875260), (5, 4037500208), (7, 2883928720), (8, 2523437630), (10, 2018750104), (14, 1441964360), (16, 1261718815), (20, 1009375052), (28, 720982180), (35, 576785744), (40, 504687526), (56, 360491090), (61, 330942640), (70, 288392872), (80, 252343763), (112, 180245545), (122, 165471320), (140, 144196436), (244, 82735660), (280, 72098218), (305, 66188528), (383, 52708880), (427, 47277520), (488, 41367830), (560, 36049109), (610, 33094264), (766, 26354440), (854, 23638760), (976, 20683915), (1220, 16547132), (1532, 13177220), (1543, 13083280), (1708, 11819380), (1915, 10541776), (2135, 9455504), (2440, 8273566), (2681, 7529840), (3064, 6588610), (3086, 6541640), (3416, 5909690), (3830, 5270888), (4270, 4727752), (4880, 4136783), (5362, 3764920), (6128, 3294305), (6172, 3270820), (6832, 2954845), (7660, 2635444), (7715, 2616656), (8540, 2363876), (10724, 1882460), (10801, 1869040), (12344, 1635410), (13405, 1505968), (15320, 1317722), (15430, 1308328), (17080, 1181938), (21448, 941230), (21602, 934520), (23363, 864080), (24688, 817705), (26810, 752984), (30640, 658861), (30860, 654164), (34160, 590969), (42896, 470615), (43204, 467260), (46726, 432040), (53620, 376492), (54005, 373808), (61720, 327082), (86408, 233630), (93452, 216020), (94123, 214480), (107240, 188246), (108010, 186904), (116815, 172816), (123440, 163541)]