20004660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 46773324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 83, 90, 103, 117, 130, 156, 166, 180, 195, 206, 234, 249, 260, 309, 332, 390, 412, 415, 468, 498, 515, 585, 618, 747, 780, 830, 927, 996, 1030, 1079, 1170, 1236, 1245, 1339, 1494, 1545, 1660, 1854, 2060, 2158, 2340, 2490, 2678, 2988, 3090, 3237, 3708, 3735, 4017, 4316, 4635, 4980, 5356, 5395, 6180, 6474, 6695, 7470, 8034, 8549, 9270, 9711, 10790, 12051, 12948, 13390, 14940, 16068, 16185, 17098, 18540, 19422, 20085, 21580, 24102, 25647, 26780, 32370, 34196, 38844, 40170, 42745, 48204, 48555, 51294, 60255, 64740, 76941, 80340, 85490, 97110, 102588, 111137, 120510, 128235, 153882, 170980, 194220, 222274, 241020, 256470, 307764, 333411, 384705, 444548, 512940, 555685, 666822, 769410, 1000233, 1111370, 1333644, 1538820, 1667055, 2000466, 2222740, 3334110, 4000932, 5001165, 6668220, 10002330, 20004660]

約数ペア:

[(1, 20004660), (2, 10002330), (3, 6668220), (4, 5001165), (5, 4000932), (6, 3334110), (9, 2222740), (10, 2000466), (12, 1667055), (13, 1538820), (15, 1333644), (18, 1111370), (20, 1000233), (26, 769410), (30, 666822), (36, 555685), (39, 512940), (45, 444548), (52, 384705), (60, 333411), (65, 307764), (78, 256470), (83, 241020), (90, 222274), (103, 194220), (117, 170980), (130, 153882), (156, 128235), (166, 120510), (180, 111137), (195, 102588), (206, 97110), (234, 85490), (249, 80340), (260, 76941), (309, 64740), (332, 60255), (390, 51294), (412, 48555), (415, 48204), (468, 42745), (498, 40170), (515, 38844), (585, 34196), (618, 32370), (747, 26780), (780, 25647), (830, 24102), (927, 21580), (996, 20085), (1030, 19422), (1079, 18540), (1170, 17098), (1236, 16185), (1245, 16068), (1339, 14940), (1494, 13390), (1545, 12948), (1660, 12051), (1854, 10790), (2060, 9711), (2158, 9270), (2340, 8549), (2490, 8034), (2678, 7470), (2988, 6695), (3090, 6474), (3237, 6180), (3708, 5395), (3735, 5356), (4017, 4980), (4316, 4635)]