84238640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 203558400

約数和(自身を除く): 119319760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 149, 185, 191, 296, 298, 370, 382, 592, 596, 740, 745, 764, 955, 1192, 1480, 1490, 1528, 1910, 2384, 2960, 2980, 3056, 3820, 5513, 5960, 7067, 7640, 11026, 11920, 14134, 15280, 22052, 27565, 28268, 28459, 35335, 44104, 55130, 56536, 56918, 70670, 88208, 110260, 113072, 113836, 141340, 142295, 220520, 227672, 282680, 284590, 441040, 455344, 565360, 569180, 1052983, 1138360, 2105966, 2276720, 4211932, 5264915, 8423864, 10529830, 16847728, 21059660, 42119320, 84238640]

約数ペア:

[(1, 84238640), (2, 42119320), (4, 21059660), (5, 16847728), (8, 10529830), (10, 8423864), (16, 5264915), (20, 4211932), (37, 2276720), (40, 2105966), (74, 1138360), (80, 1052983), (148, 569180), (149, 565360), (185, 455344), (191, 441040), (296, 284590), (298, 282680), (370, 227672), (382, 220520), (592, 142295), (596, 141340), (740, 113836), (745, 113072), (764, 110260), (955, 88208), (1192, 70670), (1480, 56918), (1490, 56536), (1528, 55130), (1910, 44104), (2384, 35335), (2960, 28459), (2980, 28268), (3056, 27565), (3820, 22052), (5513, 15280), (5960, 14134), (7067, 11920), (7640, 11026)]