20654368

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:270

約数の個数: 96

約数和(自身を含む): 51287040

約数和(自身を除く): 30632672

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 32, 38, 46, 56, 76, 92, 112, 133, 152, 161, 184, 211, 224, 266, 304, 322, 368, 422, 437, 532, 608, 644, 736, 844, 874, 1064, 1288, 1477, 1688, 1748, 2128, 2576, 2954, 3059, 3376, 3496, 4009, 4256, 4853, 5152, 5908, 6118, 6752, 6992, 8018, 9706, 11816, 12236, 13984, 16036, 19412, 23632, 24472, 28063, 32072, 33971, 38824, 47264, 48944, 56126, 64144, 67942, 77648, 92207, 97888, 112252, 128288, 135884, 155296, 184414, 224504, 271768, 368828, 449008, 543536, 645449, 737656, 898016, 1087072, 1290898, 1475312, 2581796, 2950624, 5163592, 10327184, 20654368]

約数ペア:

[(1, 20654368), (2, 10327184), (4, 5163592), (7, 2950624), (8, 2581796), (14, 1475312), (16, 1290898), (19, 1087072), (23, 898016), (28, 737656), (32, 645449), (38, 543536), (46, 449008), (56, 368828), (76, 271768), (92, 224504), (112, 184414), (133, 155296), (152, 135884), (161, 128288), (184, 112252), (211, 97888), (224, 92207), (266, 77648), (304, 67942), (322, 64144), (368, 56126), (422, 48944), (437, 47264), (532, 38824), (608, 33971), (644, 32072), (736, 28063), (844, 24472), (874, 23632), (1064, 19412), (1288, 16036), (1477, 13984), (1688, 12236), (1748, 11816), (2128, 9706), (2576, 8018), (2954, 6992), (3059, 6752), (3376, 6118), (3496, 5908), (4009, 5152), (4256, 4853)]