489393920

素因数分解:

$2^8\times 5^1\times {\mathrm{433}}^1\times {\mathrm{883}}^1$

素因数の和:1337

約数の個数: 72

約数和(自身を含む): 1176289296

約数和(自身を除く): 686895376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 433, 640, 866, 883, 1280, 1732, 1766, 2165, 3464, 3532, 4330, 4415, 6928, 7064, 8660, 8830, 13856, 14128, 17320, 17660, 27712, 28256, 34640, 35320, 55424, 56512, 69280, 70640, 110848, 113024, 138560, 141280, 226048, 277120, 282560, 382339, 554240, 565120, 764678, 1130240, 1529356, 1911695, 3058712, 3823390, 6117424, 7646780, 12234848, 15293560, 24469696, 30587120, 48939392, 61174240, 97878784, 122348480, 244696960, 489393920]

約数ペア:

[(1, 489393920), (2, 244696960), (4, 122348480), (5, 97878784), (8, 61174240), (10, 48939392), (16, 30587120), (20, 24469696), (32, 15293560), (40, 12234848), (64, 7646780), (80, 6117424), (128, 3823390), (160, 3058712), (256, 1911695), (320, 1529356), (433, 1130240), (640, 764678), (866, 565120), (883, 554240), (1280, 382339), (1732, 282560), (1766, 277120), (2165, 226048), (3464, 141280), (3532, 138560), (4330, 113024), (4415, 110848), (6928, 70640), (7064, 69280), (8660, 56512), (8830, 55424), (13856, 35320), (14128, 34640), (17320, 28256), (17660, 27712)]