780435

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 40

約数和(自身を含む): 1463616

約数和(自身を除く): 683181

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 47, 81, 123, 135, 141, 205, 235, 369, 405, 423, 615, 705, 1107, 1269, 1845, 1927, 2115, 3321, 3807, 5535, 5781, 6345, 9635, 16605, 17343, 19035, 28905, 52029, 86715, 156087, 260145, 780435]

約数ペア:

[(1, 780435), (3, 260145), (5, 156087), (9, 86715), (15, 52029), (27, 28905), (41, 19035), (45, 17343), (47, 16605), (81, 9635), (123, 6345), (135, 5781), (141, 5535), (205, 3807), (235, 3321), (369, 2115), (405, 1927), (423, 1845), (615, 1269), (705, 1107)]