257435520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{134081}}^1$

素因数の和:134103

約数の個数: 64

約数和(自身を含む): 820581840

約数和(自身を除く): 563146320

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, 134081, 268162, 402243, 536324, 670405, 804486, 1072648, 1340810, 1608972, 2011215, 2145296, 2681620, 3217944, 4022430, 4290592, 5363240, 6435888, 8044860, 8581184, 10726480, 12871776, 16089720, 17162368, 21452960, 25743552, 32179440, 42905920, 51487104, 64358880, 85811840, 128717760, 257435520]

約数ペア:

[(1, 257435520), (2, 128717760), (3, 85811840), (4, 64358880), (5, 51487104), (6, 42905920), (8, 32179440), (10, 25743552), (12, 21452960), (15, 17162368), (16, 16089720), (20, 12871776), (24, 10726480), (30, 8581184), (32, 8044860), (40, 6435888), (48, 5363240), (60, 4290592), (64, 4022430), (80, 3217944), (96, 2681620), (120, 2145296), (128, 2011215), (160, 1608972), (192, 1340810), (240, 1072648), (320, 804486), (384, 670405), (480, 536324), (640, 402243), (960, 268162), (1920, 134081)]