19782120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{467}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 59641920

約数和(自身を除く): 39859800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 353, 467, 706, 934, 1059, 1401, 1412, 1765, 1868, 2118, 2335, 2802, 2824, 3530, 3736, 4236, 4670, 5295, 5604, 7005, 7060, 8472, 9340, 10590, 11208, 14010, 14120, 18680, 21180, 28020, 42360, 56040, 164851, 329702, 494553, 659404, 824255, 989106, 1318808, 1648510, 1978212, 2472765, 3297020, 3956424, 4945530, 6594040, 9891060, 19782120]

約数ペア:

[(1, 19782120), (2, 9891060), (3, 6594040), (4, 4945530), (5, 3956424), (6, 3297020), (8, 2472765), (10, 1978212), (12, 1648510), (15, 1318808), (20, 989106), (24, 824255), (30, 659404), (40, 494553), (60, 329702), (120, 164851), (353, 56040), (467, 42360), (706, 28020), (934, 21180), (1059, 18680), (1401, 14120), (1412, 14010), (1765, 11208), (1868, 10590), (2118, 9340), (2335, 8472), (2802, 7060), (2824, 7005), (3530, 5604), (3736, 5295), (4236, 4670)]