20390370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 67568256

約数和(自身を除く): 47177886

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 33, 35, 39, 42, 49, 55, 65, 66, 70, 77, 78, 91, 97, 98, 105, 110, 130, 143, 147, 154, 165, 182, 194, 195, 210, 231, 245, 273, 286, 291, 294, 330, 385, 390, 429, 455, 462, 485, 490, 539, 546, 582, 637, 679, 715, 735, 770, 858, 910, 970, 1001, 1067, 1078, 1155, 1261, 1274, 1358, 1365, 1430, 1455, 1470, 1617, 1911, 2002, 2037, 2134, 2145, 2310, 2522, 2695, 2730, 2910, 3003, 3185, 3201, 3234, 3395, 3783, 3822, 4074, 4290, 4753, 5005, 5335, 5390, 6006, 6305, 6370, 6402, 6790, 7007, 7469, 7566, 8085, 8827, 9506, 9555, 10010, 10185, 10670, 12610, 13871, 14014, 14259, 14938, 15015, 16005, 16170, 17654, 18915, 19110, 20370, 21021, 22407, 23765, 26481, 27742, 28518, 30030, 32010, 35035, 37345, 37830, 41613, 42042, 44135, 44814, 47530, 52283, 52962, 61789, 69355, 70070, 71295, 74690, 83226, 88270, 97097, 104566, 105105, 112035, 123578, 132405, 138710, 142590, 156849, 185367, 194194, 208065, 210210, 224070, 261415, 264810, 291291, 308945, 313698, 370734, 416130, 485485, 522830, 582582, 617890, 679679, 784245, 926835, 970970, 1359358, 1456455, 1568490, 1853670, 2039037, 2912910, 3398395, 4078074, 6796790, 10195185, 20390370]

約数ペア:

[(1, 20390370), (2, 10195185), (3, 6796790), (5, 4078074), (6, 3398395), (7, 2912910), (10, 2039037), (11, 1853670), (13, 1568490), (14, 1456455), (15, 1359358), (21, 970970), (22, 926835), (26, 784245), (30, 679679), (33, 617890), (35, 582582), (39, 522830), (42, 485485), (49, 416130), (55, 370734), (65, 313698), (66, 308945), (70, 291291), (77, 264810), (78, 261415), (91, 224070), (97, 210210), (98, 208065), (105, 194194), (110, 185367), (130, 156849), (143, 142590), (147, 138710), (154, 132405), (165, 123578), (182, 112035), (194, 105105), (195, 104566), (210, 97097), (231, 88270), (245, 83226), (273, 74690), (286, 71295), (291, 70070), (294, 69355), (330, 61789), (385, 52962), (390, 52283), (429, 47530), (455, 44814), (462, 44135), (485, 42042), (490, 41613), (539, 37830), (546, 37345), (582, 35035), (637, 32010), (679, 30030), (715, 28518), (735, 27742), (770, 26481), (858, 23765), (910, 22407), (970, 21021), (1001, 20370), (1067, 19110), (1078, 18915), (1155, 17654), (1261, 16170), (1274, 16005), (1358, 15015), (1365, 14938), (1430, 14259), (1455, 14014), (1470, 13871), (1617, 12610), (1911, 10670), (2002, 10185), (2037, 10010), (2134, 9555), (2145, 9506), (2310, 8827), (2522, 8085), (2695, 7566), (2730, 7469), (2910, 7007), (3003, 6790), (3185, 6402), (3201, 6370), (3234, 6305), (3395, 6006), (3783, 5390), (3822, 5335), (4074, 5005), (4290, 4753)]