20407473455

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{859}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 26746282080

約数和(自身を除く): 6338808625

約数列:

[1, 5, 17, 41, 85, 205, 289, 401, 697, 859, 1445, 2005, 3485, 4295, 6817, 11849, 14603, 16441, 34085, 35219, 59245, 73015, 82205, 115889, 176095, 248251, 279497, 344459, 579445, 598723, 1241255, 1397485, 1722295, 2993615, 4751449, 5855803, 10178291, 14122819, 23757245, 29279015, 50891455, 70614095, 99548651, 240087923, 497743255, 1200439615, 4081494691, 20407473455]

約数ペア:

[(1, 20407473455), (5, 4081494691), (17, 1200439615), (41, 497743255), (85, 240087923), (205, 99548651), (289, 70614095), (401, 50891455), (697, 29279015), (859, 23757245), (1445, 14122819), (2005, 10178291), (3485, 5855803), (4295, 4751449), (6817, 2993615), (11849, 1722295), (14603, 1397485), (16441, 1241255), (34085, 598723), (35219, 579445), (59245, 344459), (73015, 279497), (82205, 248251), (115889, 176095)]