156945280

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{977}}^1$

素因数の和:1247

約数の個数: 64

約数和(自身を含む): 377077680

約数和(自身を除く): 220132400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 320, 502, 640, 977, 1004, 1255, 1954, 2008, 2510, 3908, 4016, 4885, 5020, 7816, 8032, 9770, 10040, 15632, 16064, 19540, 20080, 31264, 32128, 39080, 40160, 62528, 78160, 80320, 125056, 156320, 160640, 245227, 312640, 490454, 625280, 980908, 1226135, 1961816, 2452270, 3923632, 4904540, 7847264, 9809080, 15694528, 19618160, 31389056, 39236320, 78472640, 156945280]

約数ペア:

[(1, 156945280), (2, 78472640), (4, 39236320), (5, 31389056), (8, 19618160), (10, 15694528), (16, 9809080), (20, 7847264), (32, 4904540), (40, 3923632), (64, 2452270), (80, 1961816), (128, 1226135), (160, 980908), (251, 625280), (320, 490454), (502, 312640), (640, 245227), (977, 160640), (1004, 156320), (1255, 125056), (1954, 80320), (2008, 78160), (2510, 62528), (3908, 40160), (4016, 39080), (4885, 32128), (5020, 31264), (7816, 20080), (8032, 19540), (9770, 16064), (10040, 15632)]