131885440

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{821}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 316930320

約数和(自身を除く): 185044880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 320, 502, 640, 821, 1004, 1255, 1642, 2008, 2510, 3284, 4016, 4105, 5020, 6568, 8032, 8210, 10040, 13136, 16064, 16420, 20080, 26272, 32128, 32840, 40160, 52544, 65680, 80320, 105088, 131360, 160640, 206071, 262720, 412142, 525440, 824284, 1030355, 1648568, 2060710, 3297136, 4121420, 6594272, 8242840, 13188544, 16485680, 26377088, 32971360, 65942720, 131885440]

約数ペア:

[(1, 131885440), (2, 65942720), (4, 32971360), (5, 26377088), (8, 16485680), (10, 13188544), (16, 8242840), (20, 6594272), (32, 4121420), (40, 3297136), (64, 2060710), (80, 1648568), (128, 1030355), (160, 824284), (251, 525440), (320, 412142), (502, 262720), (640, 206071), (821, 160640), (1004, 131360), (1255, 105088), (1642, 80320), (2008, 65680), (2510, 52544), (3284, 40160), (4016, 32840), (4105, 32128), (5020, 26272), (6568, 20080), (8032, 16420), (8210, 16064), (10040, 13136)]