20179544

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:129

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 32075176

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 41, 44, 47, 56, 68, 77, 82, 88, 94, 119, 136, 154, 164, 187, 188, 238, 287, 308, 328, 329, 374, 376, 451, 476, 517, 574, 616, 658, 697, 748, 799, 902, 952, 1034, 1148, 1309, 1316, 1394, 1496, 1598, 1804, 1927, 2068, 2296, 2618, 2632, 2788, 3157, 3196, 3608, 3619, 3854, 4136, 4879, 5236, 5576, 5593, 6314, 6392, 7238, 7667, 7708, 8789, 9758, 10472, 11186, 12628, 13489, 14476, 15334, 15416, 17578, 19516, 21197, 22372, 25256, 26978, 28952, 30668, 32759, 35156, 39032, 42394, 44744, 53669, 53956, 61336, 61523, 65518, 70312, 84788, 107338, 107912, 123046, 131036, 148379, 169576, 214676, 229313, 246092, 262072, 296758, 360349, 429352, 458626, 492184, 593516, 720698, 917252, 1187032, 1441396, 1834504, 2522443, 2882792, 5044886, 10089772, 20179544]

約数ペア:

[(1, 20179544), (2, 10089772), (4, 5044886), (7, 2882792), (8, 2522443), (11, 1834504), (14, 1441396), (17, 1187032), (22, 917252), (28, 720698), (34, 593516), (41, 492184), (44, 458626), (47, 429352), (56, 360349), (68, 296758), (77, 262072), (82, 246092), (88, 229313), (94, 214676), (119, 169576), (136, 148379), (154, 131036), (164, 123046), (187, 107912), (188, 107338), (238, 84788), (287, 70312), (308, 65518), (328, 61523), (329, 61336), (374, 53956), (376, 53669), (451, 44744), (476, 42394), (517, 39032), (574, 35156), (616, 32759), (658, 30668), (697, 28952), (748, 26978), (799, 25256), (902, 22372), (952, 21197), (1034, 19516), (1148, 17578), (1309, 15416), (1316, 15334), (1394, 14476), (1496, 13489), (1598, 12628), (1804, 11186), (1927, 10472), (2068, 9758), (2296, 8789), (2618, 7708), (2632, 7667), (2788, 7238), (3157, 6392), (3196, 6314), (3608, 5593), (3619, 5576), (3854, 5236), (4136, 4879)]