12540990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 38568960

約数和(自身を除く): 26027970

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 61, 66, 70, 77, 89, 105, 110, 122, 154, 165, 178, 183, 210, 231, 267, 305, 330, 366, 385, 427, 445, 462, 534, 610, 623, 671, 770, 854, 890, 915, 979, 1155, 1246, 1281, 1335, 1342, 1830, 1869, 1958, 2013, 2135, 2310, 2562, 2670, 2937, 3115, 3355, 3738, 4026, 4270, 4697, 4895, 5429, 5874, 6230, 6405, 6710, 6853, 9345, 9394, 9790, 10065, 10858, 12810, 13706, 14091, 14685, 16287, 18690, 20130, 20559, 23485, 27145, 28182, 29370, 32574, 34265, 38003, 41118, 46970, 54290, 59719, 68530, 70455, 76006, 81435, 102795, 114009, 119438, 140910, 162870, 179157, 190015, 205590, 228018, 298595, 358314, 380030, 418033, 570045, 597190, 836066, 895785, 1140090, 1254099, 1791570, 2090165, 2508198, 4180330, 6270495, 12540990]

約数ペア:

[(1, 12540990), (2, 6270495), (3, 4180330), (5, 2508198), (6, 2090165), (7, 1791570), (10, 1254099), (11, 1140090), (14, 895785), (15, 836066), (21, 597190), (22, 570045), (30, 418033), (33, 380030), (35, 358314), (42, 298595), (55, 228018), (61, 205590), (66, 190015), (70, 179157), (77, 162870), (89, 140910), (105, 119438), (110, 114009), (122, 102795), (154, 81435), (165, 76006), (178, 70455), (183, 68530), (210, 59719), (231, 54290), (267, 46970), (305, 41118), (330, 38003), (366, 34265), (385, 32574), (427, 29370), (445, 28182), (462, 27145), (534, 23485), (610, 20559), (623, 20130), (671, 18690), (770, 16287), (854, 14685), (890, 14091), (915, 13706), (979, 12810), (1155, 10858), (1246, 10065), (1281, 9790), (1335, 9394), (1342, 9345), (1830, 6853), (1869, 6710), (1958, 6405), (2013, 6230), (2135, 5874), (2310, 5429), (2562, 4895), (2670, 4697), (2937, 4270), (3115, 4026), (3355, 3738)]