247455

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:77

約数の個数: 40

約数和(自身を含む): 487872

約数和(自身を除く): 240417

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 47, 65, 81, 117, 135, 141, 195, 235, 351, 405, 423, 585, 611, 705, 1053, 1269, 1755, 1833, 2115, 3055, 3807, 5265, 5499, 6345, 9165, 16497, 19035, 27495, 49491, 82485, 247455]

約数ペア:

[(1, 247455), (3, 82485), (5, 49491), (9, 27495), (13, 19035), (15, 16497), (27, 9165), (39, 6345), (45, 5499), (47, 5265), (65, 3807), (81, 3055), (117, 2115), (135, 1833), (141, 1755), (195, 1269), (235, 1053), (351, 705), (405, 611), (423, 585)]