20971530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5419}}^1$

素因数の和:5475

約数の個数: 48

約数和(自身を含む): 55804320

約数和(自身を除く): 34832790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5419, 10838, 16257, 27095, 32514, 48771, 54190, 81285, 97542, 162570, 233017, 243855, 466034, 487710, 699051, 1165085, 1398102, 2097153, 2330170, 3495255, 4194306, 6990510, 10485765, 20971530]

約数ペア:

[(1, 20971530), (2, 10485765), (3, 6990510), (5, 4194306), (6, 3495255), (9, 2330170), (10, 2097153), (15, 1398102), (18, 1165085), (30, 699051), (43, 487710), (45, 466034), (86, 243855), (90, 233017), (129, 162570), (215, 97542), (258, 81285), (387, 54190), (430, 48771), (645, 32514), (774, 27095), (1290, 16257), (1935, 10838), (3870, 5419)]