28557074

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 27326446

約数列:

[1, 2, 7, 13, 14, 26, 41, 43, 82, 86, 89, 91, 178, 182, 287, 301, 533, 559, 574, 602, 623, 1066, 1118, 1157, 1246, 1763, 2314, 3526, 3649, 3731, 3827, 3913, 7298, 7462, 7654, 7826, 8099, 12341, 16198, 22919, 24682, 25543, 26789, 45838, 47437, 49751, 51086, 53578, 94874, 99502, 156907, 160433, 313814, 320866, 332059, 348257, 664118, 696514, 1098349, 2039791, 2196698, 4079582, 14278537, 28557074]

約数ペア:

[(1, 28557074), (2, 14278537), (7, 4079582), (13, 2196698), (14, 2039791), (26, 1098349), (41, 696514), (43, 664118), (82, 348257), (86, 332059), (89, 320866), (91, 313814), (178, 160433), (182, 156907), (287, 99502), (301, 94874), (533, 53578), (559, 51086), (574, 49751), (602, 47437), (623, 45838), (1066, 26789), (1118, 25543), (1157, 24682), (1246, 22919), (1763, 16198), (2314, 12341), (3526, 8099), (3649, 7826), (3731, 7654), (3827, 7462), (3913, 7298)]