666165890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 1356600960

約数和(自身を除く): 690435070

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 89, 103, 130, 169, 178, 206, 215, 338, 430, 445, 515, 559, 845, 890, 1030, 1118, 1157, 1339, 1690, 2314, 2678, 2795, 3827, 4429, 5590, 5785, 6695, 7267, 7654, 8858, 9167, 11570, 13390, 14534, 15041, 17407, 18334, 19135, 22145, 30082, 34814, 36335, 38270, 44290, 45835, 49751, 57577, 72670, 75205, 87035, 91670, 99502, 115154, 119171, 150410, 174070, 238342, 248755, 287885, 394181, 497510, 575770, 595855, 646763, 748501, 788362, 1191710, 1293526, 1497002, 1549223, 1970905, 3098446, 3233815, 3742505, 3941810, 5124353, 6467630, 7485010, 7746115, 10248706, 15492230, 25621765, 51243530, 66616589, 133233178, 333082945, 666165890]

約数ペア:

[(1, 666165890), (2, 333082945), (5, 133233178), (10, 66616589), (13, 51243530), (26, 25621765), (43, 15492230), (65, 10248706), (86, 7746115), (89, 7485010), (103, 6467630), (130, 5124353), (169, 3941810), (178, 3742505), (206, 3233815), (215, 3098446), (338, 1970905), (430, 1549223), (445, 1497002), (515, 1293526), (559, 1191710), (845, 788362), (890, 748501), (1030, 646763), (1118, 595855), (1157, 575770), (1339, 497510), (1690, 394181), (2314, 287885), (2678, 248755), (2795, 238342), (3827, 174070), (4429, 150410), (5590, 119171), (5785, 115154), (6695, 99502), (7267, 91670), (7654, 87035), (8858, 75205), (9167, 72670), (11570, 57577), (13390, 49751), (14534, 45835), (15041, 44290), (17407, 38270), (18334, 36335), (19135, 34814), (22145, 30082)]