81185535

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 146240640

約数和(自身を除く): 65055105

約数列:

[1, 3, 5, 9, 15, 41, 45, 79, 123, 205, 237, 369, 395, 557, 615, 711, 1185, 1671, 1845, 2785, 3239, 3555, 5013, 8355, 9717, 16195, 22837, 25065, 29151, 44003, 48585, 68511, 114185, 132009, 145755, 205533, 220015, 342555, 396027, 660045, 1027665, 1804123, 1980135, 5412369, 9020615, 16237107, 27061845, 81185535]

約数ペア:

[(1, 81185535), (3, 27061845), (5, 16237107), (9, 9020615), (15, 5412369), (41, 1980135), (45, 1804123), (79, 1027665), (123, 660045), (205, 396027), (237, 342555), (369, 220015), (395, 205533), (557, 145755), (615, 132009), (711, 114185), (1185, 68511), (1671, 48585), (1845, 44003), (2785, 29151), (3239, 25065), (3555, 22837), (5013, 16195), (8355, 9717)]