28506478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 59512320

約数和(自身を除く): 31005842

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 29, 58, 77, 91, 143, 154, 182, 203, 286, 319, 377, 406, 491, 638, 754, 982, 1001, 2002, 2233, 2639, 3437, 4147, 4466, 5278, 5401, 6383, 6874, 8294, 10802, 12766, 14239, 28478, 29029, 37807, 44681, 58058, 70213, 75614, 89362, 99673, 140426, 156629, 185107, 199346, 313258, 370214, 491491, 982982, 1096403, 1295749, 2036177, 2192806, 2591498, 4072354, 14253239, 28506478]

約数ペア:

[(1, 28506478), (2, 14253239), (7, 4072354), (11, 2591498), (13, 2192806), (14, 2036177), (22, 1295749), (26, 1096403), (29, 982982), (58, 491491), (77, 370214), (91, 313258), (143, 199346), (154, 185107), (182, 156629), (203, 140426), (286, 99673), (319, 89362), (377, 75614), (406, 70213), (491, 58058), (638, 44681), (754, 37807), (982, 29029), (1001, 28478), (2002, 14239), (2233, 12766), (2639, 10802), (3437, 8294), (4147, 6874), (4466, 6383), (5278, 5401)]