257458560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{134093}}^1$

素因数の和:134115

約数の個数: 64

約数和(自身を含む): 820655280

約数和(自身を除く): 563196720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 134093, 268186, 402279, 536372, 670465, 804558, 1072744, 1340930, 1609116, 2011395, 2145488, 2681860, 3218232, 4022790, 4290976, 5363720, 6436464, 8045580, 8581952, 10727440, 12872928, 16091160, 17163904, 21454880, 25745856, 32182320, 42909760, 51491712, 64364640, 85819520, 128729280, 257458560]

約数ペア:

[(1, 257458560), (2, 128729280), (3, 85819520), (4, 64364640), (5, 51491712), (6, 42909760), (8, 32182320), (10, 25745856), (12, 21454880), (15, 17163904), (16, 16091160), (20, 12872928), (24, 10727440), (30, 8581952), (32, 8045580), (40, 6436464), (48, 5363720), (60, 4290976), (64, 4022790), (80, 3218232), (96, 2681860), (120, 2145488), (128, 2011395), (160, 1609116), (192, 1340930), (240, 1072744), (320, 804558), (384, 670465), (480, 536372), (640, 402279), (960, 268186), (1920, 134093)]