20654816

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 51565248

約数和(自身を除く): 30910432

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 52, 56, 82, 91, 104, 112, 164, 173, 182, 208, 224, 287, 328, 346, 364, 416, 533, 574, 656, 692, 728, 1066, 1148, 1211, 1312, 1384, 1456, 2132, 2249, 2296, 2422, 2768, 2912, 3731, 4264, 4498, 4592, 4844, 5536, 7093, 7462, 8528, 8996, 9184, 9688, 14186, 14924, 15743, 17056, 17992, 19376, 28372, 29848, 31486, 35984, 38752, 49651, 56744, 59696, 62972, 71968, 92209, 99302, 113488, 119392, 125944, 184418, 198604, 226976, 251888, 368836, 397208, 503776, 645463, 737672, 794416, 1290926, 1475344, 1588832, 2581852, 2950688, 5163704, 10327408, 20654816]

約数ペア:

[(1, 20654816), (2, 10327408), (4, 5163704), (7, 2950688), (8, 2581852), (13, 1588832), (14, 1475344), (16, 1290926), (26, 794416), (28, 737672), (32, 645463), (41, 503776), (52, 397208), (56, 368836), (82, 251888), (91, 226976), (104, 198604), (112, 184418), (164, 125944), (173, 119392), (182, 113488), (208, 99302), (224, 92209), (287, 71968), (328, 62972), (346, 59696), (364, 56744), (416, 49651), (533, 38752), (574, 35984), (656, 31486), (692, 29848), (728, 28372), (1066, 19376), (1148, 17992), (1211, 17056), (1312, 15743), (1384, 14924), (1456, 14186), (2132, 9688), (2249, 9184), (2296, 8996), (2422, 8528), (2768, 7462), (2912, 7093), (3731, 5536), (4264, 4844), (4498, 4592)]