39909680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 96972960

約数和(自身を除く): 57063280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 97, 139, 148, 185, 194, 278, 296, 370, 388, 485, 556, 592, 695, 740, 776, 970, 1112, 1390, 1480, 1552, 1940, 2224, 2780, 2960, 3589, 3880, 5143, 5560, 7178, 7760, 10286, 11120, 13483, 14356, 17945, 20572, 25715, 26966, 28712, 35890, 41144, 51430, 53932, 57424, 67415, 71780, 82288, 102860, 107864, 134830, 143560, 205720, 215728, 269660, 287120, 411440, 498871, 539320, 997742, 1078640, 1995484, 2494355, 3990968, 4988710, 7981936, 9977420, 19954840, 39909680]

約数ペア:

[(1, 39909680), (2, 19954840), (4, 9977420), (5, 7981936), (8, 4988710), (10, 3990968), (16, 2494355), (20, 1995484), (37, 1078640), (40, 997742), (74, 539320), (80, 498871), (97, 411440), (139, 287120), (148, 269660), (185, 215728), (194, 205720), (278, 143560), (296, 134830), (370, 107864), (388, 102860), (485, 82288), (556, 71780), (592, 67415), (695, 57424), (740, 53932), (776, 51430), (970, 41144), (1112, 35890), (1390, 28712), (1480, 26966), (1552, 25715), (1940, 20572), (2224, 17945), (2780, 14356), (2960, 13483), (3589, 11120), (3880, 10286), (5143, 7760), (5560, 7178)]