18919807408

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{9601}}^1$

素因数の和:9806

約数の個数: 80

約数和(自身を含む): 39434261760

約数和(自身を除く): 20514454352

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 137, 232, 248, 274, 464, 496, 548, 899, 1096, 1798, 2192, 3596, 3973, 4247, 7192, 7946, 8494, 9601, 14384, 15892, 16988, 19202, 31784, 33976, 38404, 63568, 67952, 76808, 123163, 153616, 246326, 278429, 297631, 492652, 556858, 595262, 985304, 1113716, 1190524, 1315337, 1970608, 2227432, 2381048, 2630674, 4454864, 4762096, 5261348, 8631299, 10522696, 17262598, 21045392, 34525196, 38144773, 40775447, 69050392, 76289546, 81550894, 138100784, 152579092, 163101788, 305158184, 326203576, 610316368, 652407152, 1182487963, 2364975926, 4729951852, 9459903704, 18919807408]

約数ペア:

[(1, 18919807408), (2, 9459903704), (4, 4729951852), (8, 2364975926), (16, 1182487963), (29, 652407152), (31, 610316368), (58, 326203576), (62, 305158184), (116, 163101788), (124, 152579092), (137, 138100784), (232, 81550894), (248, 76289546), (274, 69050392), (464, 40775447), (496, 38144773), (548, 34525196), (899, 21045392), (1096, 17262598), (1798, 10522696), (2192, 8631299), (3596, 5261348), (3973, 4762096), (4247, 4454864), (7192, 2630674), (7946, 2381048), (8494, 2227432), (9601, 1970608), (14384, 1315337), (15892, 1190524), (16988, 1113716), (19202, 985304), (31784, 595262), (33976, 556858), (38404, 492652), (63568, 297631), (67952, 278429), (76808, 246326), (123163, 153616)]