20187502440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{24251}}^1$

素因数の和:25263

約数の個数: 128

約数和(自身を含む): 69286993920

約数和(自身を除く): 49099491480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 991, 1982, 2973, 3964, 4955, 5946, 6937, 7928, 9910, 11892, 13874, 14865, 19820, 20811, 23784, 24251, 27748, 29730, 34685, 39640, 41622, 48502, 55496, 59460, 69370, 72753, 83244, 97004, 104055, 118920, 121255, 138740, 145506, 166488, 169757, 194008, 208110, 242510, 277480, 291012, 339514, 363765, 416220, 485020, 509271, 582024, 679028, 727530, 832440, 848785, 970040, 1018542, 1358056, 1455060, 1697570, 2037084, 2546355, 2910120, 3395140, 4074168, 5092710, 6790280, 10185420, 20370840, 24032741, 48065482, 72098223, 96130964, 120163705, 144196446, 168229187, 192261928, 240327410, 288392892, 336458374, 360491115, 480654820, 504687561, 576785784, 672916748, 720982230, 841145935, 961309640, 1009375122, 1345833496, 1441964460, 1682291870, 2018750244, 2523437805, 2883928920, 3364583740, 4037500488, 5046875610, 6729167480, 10093751220, 20187502440]

約数ペア:

[(1, 20187502440), (2, 10093751220), (3, 6729167480), (4, 5046875610), (5, 4037500488), (6, 3364583740), (7, 2883928920), (8, 2523437805), (10, 2018750244), (12, 1682291870), (14, 1441964460), (15, 1345833496), (20, 1009375122), (21, 961309640), (24, 841145935), (28, 720982230), (30, 672916748), (35, 576785784), (40, 504687561), (42, 480654820), (56, 360491115), (60, 336458374), (70, 288392892), (84, 240327410), (105, 192261928), (120, 168229187), (140, 144196446), (168, 120163705), (210, 96130964), (280, 72098223), (420, 48065482), (840, 24032741), (991, 20370840), (1982, 10185420), (2973, 6790280), (3964, 5092710), (4955, 4074168), (5946, 3395140), (6937, 2910120), (7928, 2546355), (9910, 2037084), (11892, 1697570), (13874, 1455060), (14865, 1358056), (19820, 1018542), (20811, 970040), (23784, 848785), (24251, 832440), (27748, 727530), (29730, 679028), (34685, 582024), (39640, 509271), (41622, 485020), (48502, 416220), (55496, 363765), (59460, 339514), (69370, 291012), (72753, 277480), (83244, 242510), (97004, 208110), (104055, 194008), (118920, 169757), (121255, 166488), (138740, 145506)]