478777779

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 728642304

約数和(自身を除く): 249864525

約数列:

[1, 3, 9, 53, 67, 71, 159, 201, 211, 213, 477, 603, 633, 639, 1899, 3551, 3763, 4757, 10653, 11183, 11289, 14137, 14271, 14981, 31959, 33549, 33867, 42411, 42813, 44943, 100647, 127233, 134829, 252121, 749261, 756363, 793993, 1003727, 2247783, 2269089, 2381979, 3011181, 6743349, 7145937, 9033543, 53197531, 159592593, 478777779]

約数ペア:

[(1, 478777779), (3, 159592593), (9, 53197531), (53, 9033543), (67, 7145937), (71, 6743349), (159, 3011181), (201, 2381979), (211, 2269089), (213, 2247783), (477, 1003727), (603, 793993), (633, 756363), (639, 749261), (1899, 252121), (3551, 134829), (3763, 127233), (4757, 100647), (10653, 44943), (11183, 42813), (11289, 42411), (14137, 33867), (14271, 33549), (14981, 31959)]