81571770

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:429

約数の個数: 144

約数和(自身を含む): 252088200

約数和(自身を除く): 170516430

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 53, 63, 70, 90, 98, 105, 106, 126, 147, 159, 210, 245, 265, 294, 315, 318, 349, 371, 441, 477, 490, 530, 630, 698, 735, 742, 795, 882, 954, 1047, 1113, 1470, 1590, 1745, 1855, 2094, 2205, 2226, 2385, 2443, 2597, 3141, 3339, 3490, 3710, 4410, 4770, 4886, 5194, 5235, 5565, 6282, 6678, 7329, 7791, 10470, 11130, 12215, 12985, 14658, 15582, 15705, 16695, 17101, 18497, 21987, 23373, 24430, 25970, 31410, 33390, 34202, 36645, 36994, 38955, 43974, 46746, 51303, 55491, 73290, 77910, 85505, 92485, 102606, 109935, 110982, 116865, 129479, 153909, 166473, 171010, 184970, 219870, 233730, 256515, 258958, 277455, 307818, 332946, 388437, 513030, 554910, 647395, 769545, 776874, 832365, 906353, 1165311, 1294790, 1539090, 1664730, 1812706, 1942185, 2330622, 2719059, 3884370, 4531765, 5438118, 5826555, 8157177, 9063530, 11653110, 13595295, 16314354, 27190590, 40785885, 81571770]

約数ペア:

[(1, 81571770), (2, 40785885), (3, 27190590), (5, 16314354), (6, 13595295), (7, 11653110), (9, 9063530), (10, 8157177), (14, 5826555), (15, 5438118), (18, 4531765), (21, 3884370), (30, 2719059), (35, 2330622), (42, 1942185), (45, 1812706), (49, 1664730), (53, 1539090), (63, 1294790), (70, 1165311), (90, 906353), (98, 832365), (105, 776874), (106, 769545), (126, 647395), (147, 554910), (159, 513030), (210, 388437), (245, 332946), (265, 307818), (294, 277455), (315, 258958), (318, 256515), (349, 233730), (371, 219870), (441, 184970), (477, 171010), (490, 166473), (530, 153909), (630, 129479), (698, 116865), (735, 110982), (742, 109935), (795, 102606), (882, 92485), (954, 85505), (1047, 77910), (1113, 73290), (1470, 55491), (1590, 51303), (1745, 46746), (1855, 43974), (2094, 38955), (2205, 36994), (2226, 36645), (2385, 34202), (2443, 33390), (2597, 31410), (3141, 25970), (3339, 24430), (3490, 23373), (3710, 21987), (4410, 18497), (4770, 17101), (4886, 16695), (5194, 15705), (5235, 15582), (5565, 14658), (6282, 12985), (6678, 12215), (7329, 11130), (7791, 10470)]