666128885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{773}}^1$

素因数の和:1037

約数の個数: 32

約数和(自身を含む): 864898560

約数和(自身を除く): 198769675

約数列:

[1, 5, 19, 47, 95, 193, 235, 773, 893, 965, 3667, 3865, 4465, 9071, 14687, 18335, 36331, 45355, 73435, 149189, 172349, 181655, 690289, 745945, 861745, 2834591, 3451445, 7011883, 14172955, 35059415, 133225777, 666128885]

約数ペア:

[(1, 666128885), (5, 133225777), (19, 35059415), (47, 14172955), (95, 7011883), (193, 3451445), (235, 2834591), (773, 861745), (893, 745945), (965, 690289), (3667, 181655), (3865, 172349), (4465, 149189), (9071, 73435), (14687, 45355), (18335, 36331)]