20891648384

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{9059}}^1$

素因数の和:9535

約数の個数: 64

約数和(自身を含む): 42694344000

約数和(自身を除く): 21802695616

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 419, 688, 838, 1376, 1676, 2752, 3352, 5504, 6704, 9059, 13408, 18017, 18118, 26816, 36034, 36236, 53632, 72068, 72472, 144136, 144944, 288272, 289888, 389537, 576544, 579776, 779074, 1153088, 1159552, 1558148, 2306176, 3116296, 3795721, 6232592, 7591442, 12465184, 15182884, 24930368, 30365768, 49860736, 60731536, 121463072, 163216003, 242926144, 326432006, 485852288, 652864012, 1305728024, 2611456048, 5222912096, 10445824192, 20891648384]

約数ペア:

[(1, 20891648384), (2, 10445824192), (4, 5222912096), (8, 2611456048), (16, 1305728024), (32, 652864012), (43, 485852288), (64, 326432006), (86, 242926144), (128, 163216003), (172, 121463072), (344, 60731536), (419, 49860736), (688, 30365768), (838, 24930368), (1376, 15182884), (1676, 12465184), (2752, 7591442), (3352, 6232592), (5504, 3795721), (6704, 3116296), (9059, 2306176), (13408, 1558148), (18017, 1159552), (18118, 1153088), (26816, 779074), (36034, 579776), (36236, 576544), (53632, 389537), (72068, 289888), (72472, 288272), (144136, 144944)]