20935170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{509}}^1$

素因数の和:979

約数の個数: 48

約数和(自身を含む): 54657720

約数和(自身を除く): 33722550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 457, 509, 914, 1018, 1371, 1527, 2285, 2545, 2742, 3054, 4113, 4570, 4581, 5090, 6855, 7635, 8226, 9162, 13710, 15270, 20565, 22905, 41130, 45810, 232613, 465226, 697839, 1163065, 1395678, 2093517, 2326130, 3489195, 4187034, 6978390, 10467585, 20935170]

約数ペア:

[(1, 20935170), (2, 10467585), (3, 6978390), (5, 4187034), (6, 3489195), (9, 2326130), (10, 2093517), (15, 1395678), (18, 1163065), (30, 697839), (45, 465226), (90, 232613), (457, 45810), (509, 41130), (914, 22905), (1018, 20565), (1371, 15270), (1527, 13710), (2285, 9162), (2545, 8226), (2742, 7635), (3054, 6855), (4113, 5090), (4570, 4581)]