1998135

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:93

約数の個数: 48

約数和(自身を含む): 3840480

約数和(自身を除く): 1842345

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 57, 95, 123, 135, 171, 205, 285, 361, 369, 513, 615, 779, 855, 1083, 1107, 1805, 1845, 2337, 2565, 3249, 3895, 5415, 5535, 7011, 9747, 11685, 14801, 16245, 21033, 35055, 44403, 48735, 74005, 105165, 133209, 222015, 399627, 666045, 1998135]

約数ペア:

[(1, 1998135), (3, 666045), (5, 399627), (9, 222015), (15, 133209), (19, 105165), (27, 74005), (41, 48735), (45, 44403), (57, 35055), (95, 21033), (123, 16245), (135, 14801), (171, 11685), (205, 9747), (285, 7011), (361, 5535), (369, 5415), (513, 3895), (615, 3249), (779, 2565), (855, 2337), (1083, 1845), (1107, 1805)]