20890320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 72745344

約数和(自身を除く): 51855024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 41, 44, 48, 55, 60, 66, 80, 82, 88, 110, 120, 123, 132, 164, 165, 176, 193, 205, 220, 240, 246, 264, 328, 330, 386, 410, 440, 451, 492, 528, 579, 615, 656, 660, 772, 820, 880, 902, 965, 984, 1158, 1230, 1320, 1353, 1544, 1640, 1804, 1930, 1968, 2123, 2255, 2316, 2460, 2640, 2706, 2895, 3088, 3280, 3608, 3860, 4246, 4510, 4632, 4920, 5412, 5790, 6369, 6765, 7216, 7720, 7913, 8492, 9020, 9264, 9840, 10615, 10824, 11580, 12738, 13530, 15440, 15826, 16984, 18040, 21230, 21648, 23160, 23739, 25476, 27060, 31652, 31845, 33968, 36080, 39565, 42460, 46320, 47478, 50952, 54120, 63304, 63690, 79130, 84920, 87043, 94956, 101904, 108240, 118695, 126608, 127380, 158260, 169840, 174086, 189912, 237390, 254760, 261129, 316520, 348172, 379824, 435215, 474780, 509520, 522258, 633040, 696344, 870430, 949560, 1044516, 1305645, 1392688, 1740860, 1899120, 2089032, 2611290, 3481720, 4178064, 5222580, 6963440, 10445160, 20890320]

約数ペア:

[(1, 20890320), (2, 10445160), (3, 6963440), (4, 5222580), (5, 4178064), (6, 3481720), (8, 2611290), (10, 2089032), (11, 1899120), (12, 1740860), (15, 1392688), (16, 1305645), (20, 1044516), (22, 949560), (24, 870430), (30, 696344), (33, 633040), (40, 522258), (41, 509520), (44, 474780), (48, 435215), (55, 379824), (60, 348172), (66, 316520), (80, 261129), (82, 254760), (88, 237390), (110, 189912), (120, 174086), (123, 169840), (132, 158260), (164, 127380), (165, 126608), (176, 118695), (193, 108240), (205, 101904), (220, 94956), (240, 87043), (246, 84920), (264, 79130), (328, 63690), (330, 63304), (386, 54120), (410, 50952), (440, 47478), (451, 46320), (492, 42460), (528, 39565), (579, 36080), (615, 33968), (656, 31845), (660, 31652), (772, 27060), (820, 25476), (880, 23739), (902, 23160), (965, 21648), (984, 21230), (1158, 18040), (1230, 16984), (1320, 15826), (1353, 15440), (1544, 13530), (1640, 12738), (1804, 11580), (1930, 10824), (1968, 10615), (2123, 9840), (2255, 9264), (2316, 9020), (2460, 8492), (2640, 7913), (2706, 7720), (2895, 7216), (3088, 6765), (3280, 6369), (3608, 5790), (3860, 5412), (4246, 4920), (4510, 4632)]