27719955

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 25156845

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 101, 107, 135, 171, 285, 303, 321, 505, 513, 535, 855, 909, 963, 1515, 1605, 1919, 2033, 2565, 2727, 2889, 4545, 4815, 5757, 6099, 9595, 10165, 10807, 13635, 14445, 17271, 18297, 28785, 30495, 32421, 51813, 54035, 54891, 86355, 91485, 97263, 162105, 205333, 259065, 274455, 291789, 486315, 615999, 1026665, 1458945, 1847997, 3079995, 5543991, 9239985, 27719955]

約数ペア:

[(1, 27719955), (3, 9239985), (5, 5543991), (9, 3079995), (15, 1847997), (19, 1458945), (27, 1026665), (45, 615999), (57, 486315), (95, 291789), (101, 274455), (107, 259065), (135, 205333), (171, 162105), (285, 97263), (303, 91485), (321, 86355), (505, 54891), (513, 54035), (535, 51813), (855, 32421), (909, 30495), (963, 28785), (1515, 18297), (1605, 17271), (1919, 14445), (2033, 13635), (2565, 10807), (2727, 10165), (2889, 9595), (4545, 6099), (4815, 5757)]