381915

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:81

約数の個数: 40

約数和(自身を含む): 731808

約数和(自身を除く): 349893

約数列:

[1, 3, 5, 9, 15, 23, 27, 41, 45, 69, 81, 115, 123, 135, 205, 207, 345, 369, 405, 615, 621, 943, 1035, 1107, 1845, 1863, 2829, 3105, 3321, 4715, 5535, 8487, 9315, 14145, 16605, 25461, 42435, 76383, 127305, 381915]

約数ペア:

[(1, 381915), (3, 127305), (5, 76383), (9, 42435), (15, 25461), (23, 16605), (27, 14145), (41, 9315), (45, 8487), (69, 5535), (81, 4715), (115, 3321), (123, 3105), (135, 2829), (205, 1863), (207, 1845), (345, 1107), (369, 1035), (405, 943), (615, 621)]