399472129

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 487296000

約数和(自身を除く): 87823871

約数列:

[1, 7, 29, 47, 149, 203, 281, 329, 1043, 1363, 1967, 4321, 7003, 8149, 9541, 13207, 30247, 41869, 49021, 57043, 92449, 203087, 293083, 383003, 1214201, 1421609, 1967843, 2681021, 8499407, 13774901, 57067447, 399472129]

約数ペア:

[(1, 399472129), (7, 57067447), (29, 13774901), (47, 8499407), (149, 2681021), (203, 1967843), (281, 1421609), (329, 1214201), (1043, 383003), (1363, 293083), (1967, 203087), (4321, 92449), (7003, 57043), (8149, 49021), (9541, 41869), (13207, 30247)]