20618416

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:76

約数の個数: 120

約数和(自身を含む): 53295200

約数和(自身を除く): 32676784

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 49, 52, 56, 68, 91, 98, 104, 112, 119, 136, 182, 196, 208, 221, 238, 272, 289, 343, 364, 392, 442, 476, 578, 637, 686, 728, 784, 833, 884, 952, 1156, 1274, 1372, 1456, 1547, 1666, 1768, 1904, 2023, 2312, 2548, 2744, 3094, 3332, 3536, 3757, 4046, 4459, 4624, 5096, 5488, 5831, 6188, 6664, 7514, 8092, 8918, 10192, 10829, 11662, 12376, 13328, 14161, 15028, 16184, 17836, 21658, 23324, 24752, 26299, 28322, 30056, 32368, 35672, 43316, 46648, 52598, 56644, 60112, 71344, 75803, 86632, 93296, 99127, 105196, 113288, 151606, 173264, 184093, 198254, 210392, 226576, 303212, 368186, 396508, 420784, 606424, 736372, 793016, 1212848, 1288651, 1472744, 1586032, 2577302, 2945488, 5154604, 10309208, 20618416]

約数ペア:

[(1, 20618416), (2, 10309208), (4, 5154604), (7, 2945488), (8, 2577302), (13, 1586032), (14, 1472744), (16, 1288651), (17, 1212848), (26, 793016), (28, 736372), (34, 606424), (49, 420784), (52, 396508), (56, 368186), (68, 303212), (91, 226576), (98, 210392), (104, 198254), (112, 184093), (119, 173264), (136, 151606), (182, 113288), (196, 105196), (208, 99127), (221, 93296), (238, 86632), (272, 75803), (289, 71344), (343, 60112), (364, 56644), (392, 52598), (442, 46648), (476, 43316), (578, 35672), (637, 32368), (686, 30056), (728, 28322), (784, 26299), (833, 24752), (884, 23324), (952, 21658), (1156, 17836), (1274, 16184), (1372, 15028), (1456, 14161), (1547, 13328), (1666, 12376), (1768, 11662), (1904, 10829), (2023, 10192), (2312, 8918), (2548, 8092), (2744, 7514), (3094, 6664), (3332, 6188), (3536, 5831), (3757, 5488), (4046, 5096), (4459, 4624)]