20659236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 53371584

約数和(自身を除く): 32712348

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 167, 169, 183, 244, 334, 338, 366, 501, 507, 668, 676, 732, 793, 1002, 1014, 1586, 2004, 2028, 2171, 2379, 3172, 4342, 4758, 6513, 8684, 9516, 10187, 10309, 13026, 20374, 20618, 26052, 28223, 30561, 30927, 40748, 41236, 56446, 61122, 61854, 84669, 112892, 122244, 123708, 132431, 169338, 264862, 338676, 397293, 529724, 794586, 1589172, 1721603, 3443206, 5164809, 6886412, 10329618, 20659236]

約数ペア:

[(1, 20659236), (2, 10329618), (3, 6886412), (4, 5164809), (6, 3443206), (12, 1721603), (13, 1589172), (26, 794586), (39, 529724), (52, 397293), (61, 338676), (78, 264862), (122, 169338), (156, 132431), (167, 123708), (169, 122244), (183, 112892), (244, 84669), (334, 61854), (338, 61122), (366, 56446), (501, 41236), (507, 40748), (668, 30927), (676, 30561), (732, 28223), (793, 26052), (1002, 20618), (1014, 20374), (1586, 13026), (2004, 10309), (2028, 10187), (2171, 9516), (2379, 8684), (3172, 6513), (4342, 4758)]