20964641488

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{691}}^1\times {\mathrm{9341}}^1$

素因数の和:10076

約数の個数: 80

約数和(自身を含む): 48097100160

約数和(自身を除く): 27132458672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 691, 812, 1382, 1624, 2764, 3248, 4837, 5528, 9341, 9674, 11056, 18682, 19348, 20039, 37364, 38696, 40078, 65387, 74728, 77392, 80156, 130774, 140273, 149456, 160312, 261548, 270889, 280546, 320624, 523096, 541778, 561092, 1046192, 1083556, 1122184, 1896223, 2167112, 2244368, 3792446, 4334224, 6454631, 7584892, 12909262, 15169784, 25818524, 30339568, 45182417, 51637048, 90364834, 103274096, 180729668, 187184299, 361459336, 374368598, 722918672, 748737196, 1310290093, 1497474392, 2620580186, 2994948784, 5241160372, 10482320744, 20964641488]

約数ペア:

[(1, 20964641488), (2, 10482320744), (4, 5241160372), (7, 2994948784), (8, 2620580186), (14, 1497474392), (16, 1310290093), (28, 748737196), (29, 722918672), (56, 374368598), (58, 361459336), (112, 187184299), (116, 180729668), (203, 103274096), (232, 90364834), (406, 51637048), (464, 45182417), (691, 30339568), (812, 25818524), (1382, 15169784), (1624, 12909262), (2764, 7584892), (3248, 6454631), (4837, 4334224), (5528, 3792446), (9341, 2244368), (9674, 2167112), (11056, 1896223), (18682, 1122184), (19348, 1083556), (20039, 1046192), (37364, 561092), (38696, 541778), (40078, 523096), (65387, 320624), (74728, 280546), (77392, 270889), (80156, 261548), (130774, 160312), (140273, 149456)]