15220215

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 27799200

約数和(自身を除く): 12578985

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 107, 109, 145, 261, 321, 327, 435, 535, 545, 963, 981, 1305, 1605, 1635, 3103, 3161, 4815, 4905, 9309, 9483, 11663, 15515, 15805, 27927, 28449, 34989, 46545, 47415, 58315, 104967, 139635, 142245, 174945, 338227, 524835, 1014681, 1691135, 3044043, 5073405, 15220215]

約数ペア:

[(1, 15220215), (3, 5073405), (5, 3044043), (9, 1691135), (15, 1014681), (29, 524835), (45, 338227), (87, 174945), (107, 142245), (109, 139635), (145, 104967), (261, 58315), (321, 47415), (327, 46545), (435, 34989), (535, 28449), (545, 27927), (963, 15805), (981, 15515), (1305, 11663), (1605, 9483), (1635, 9309), (3103, 4905), (3161, 4815)]