90008440

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{13007}}^1$

素因数の和:13191

約数の個数: 32

約数和(自身を含む): 203705280

約数和(自身を除く): 113696840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 13007, 26014, 52028, 65035, 104056, 130070, 260140, 520280, 2250211, 4500422, 9000844, 11251055, 18001688, 22502110, 45004220, 90008440]

約数ペア:

[(1, 90008440), (2, 45004220), (4, 22502110), (5, 18001688), (8, 11251055), (10, 9000844), (20, 4500422), (40, 2250211), (173, 520280), (346, 260140), (692, 130070), (865, 104056), (1384, 65035), (1730, 52028), (3460, 26014), (6920, 13007)]