20150917815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:953

約数の個数: 128

約数和(自身を含む): 39046072320

約数和(自身を除く): 18895154505

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 61, 87, 105, 145, 157, 183, 203, 305, 427, 435, 471, 609, 691, 785, 915, 1015, 1099, 1281, 1769, 2073, 2135, 2355, 3045, 3297, 3455, 4553, 4837, 5307, 5495, 6405, 8845, 9577, 10365, 12383, 13659, 14511, 16485, 20039, 22765, 24185, 26535, 28731, 31871, 37149, 42151, 47885, 60117, 61915, 67039, 68295, 72555, 95613, 100195, 108487, 126453, 140273, 143655, 159355, 185745, 201117, 210755, 277733, 295057, 300585, 325461, 335195, 420819, 478065, 542435, 632265, 701365, 759409, 833199, 885171, 1005585, 1222379, 1388665, 1475285, 1627305, 1944131, 2104095, 2278227, 3146123, 3667137, 3797045, 4165995, 4425855, 5832393, 6111895, 6617707, 8556653, 9438369, 9720655, 11391135, 15730615, 18335685, 19853121, 22022861, 25669959, 29161965, 33088535, 42783265, 46323949, 47191845, 66068583, 99265605, 110114305, 128349795, 138971847, 191913503, 231619745, 330342915, 575740509, 694859235, 959567515, 1343394521, 2878702545, 4030183563, 6716972605, 20150917815]

約数ペア:

[(1, 20150917815), (3, 6716972605), (5, 4030183563), (7, 2878702545), (15, 1343394521), (21, 959567515), (29, 694859235), (35, 575740509), (61, 330342915), (87, 231619745), (105, 191913503), (145, 138971847), (157, 128349795), (183, 110114305), (203, 99265605), (305, 66068583), (427, 47191845), (435, 46323949), (471, 42783265), (609, 33088535), (691, 29161965), (785, 25669959), (915, 22022861), (1015, 19853121), (1099, 18335685), (1281, 15730615), (1769, 11391135), (2073, 9720655), (2135, 9438369), (2355, 8556653), (3045, 6617707), (3297, 6111895), (3455, 5832393), (4553, 4425855), (4837, 4165995), (5307, 3797045), (5495, 3667137), (6405, 3146123), (8845, 2278227), (9577, 2104095), (10365, 1944131), (12383, 1627305), (13659, 1475285), (14511, 1388665), (16485, 1222379), (20039, 1005585), (22765, 885171), (24185, 833199), (26535, 759409), (28731, 701365), (31871, 632265), (37149, 542435), (42151, 478065), (47885, 420819), (60117, 335195), (61915, 325461), (67039, 300585), (68295, 295057), (72555, 277733), (95613, 210755), (100195, 201117), (108487, 185745), (126453, 159355), (140273, 143655)]