42138145

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 60604416

約数和(自身を除く): 18466271

約数列:

[1, 5, 7, 31, 35, 71, 155, 217, 355, 497, 547, 1085, 2201, 2485, 2735, 3829, 11005, 15407, 16957, 19145, 38837, 77035, 84785, 118699, 194185, 271859, 593495, 1203947, 1359295, 6019735, 8427629, 42138145]

約数ペア:

[(1, 42138145), (5, 8427629), (7, 6019735), (31, 1359295), (35, 1203947), (71, 593495), (155, 271859), (217, 194185), (355, 118699), (497, 84785), (547, 77035), (1085, 38837), (2201, 19145), (2485, 16957), (2735, 15407), (3829, 11005)]