20029952

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 24163648

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 71, 76, 116, 128, 142, 152, 232, 256, 284, 304, 464, 512, 551, 568, 608, 928, 1102, 1136, 1216, 1349, 1856, 2059, 2204, 2272, 2432, 2698, 3712, 4118, 4408, 4544, 4864, 5396, 7424, 8236, 8816, 9088, 9728, 10792, 14848, 16472, 17632, 18176, 21584, 32944, 35264, 36352, 39121, 43168, 65888, 70528, 78242, 86336, 131776, 141056, 156484, 172672, 263552, 282112, 312968, 345344, 527104, 625936, 690688, 1054208, 1251872, 2503744, 5007488, 10014976, 20029952]

約数ペア:

[(1, 20029952), (2, 10014976), (4, 5007488), (8, 2503744), (16, 1251872), (19, 1054208), (29, 690688), (32, 625936), (38, 527104), (58, 345344), (64, 312968), (71, 282112), (76, 263552), (116, 172672), (128, 156484), (142, 141056), (152, 131776), (232, 86336), (256, 78242), (284, 70528), (304, 65888), (464, 43168), (512, 39121), (551, 36352), (568, 35264), (608, 32944), (928, 21584), (1102, 18176), (1136, 17632), (1216, 16472), (1349, 14848), (1856, 10792), (2059, 9728), (2204, 9088), (2272, 8816), (2432, 8236), (2698, 7424), (3712, 5396), (4118, 4864), (4408, 4544)]