521507900

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{277}}^1\times {\mathrm{281}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 1156811376

約数和(自身を除く): 635303476

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 277, 281, 335, 554, 562, 670, 1108, 1124, 1340, 1385, 1405, 1675, 2770, 2810, 3350, 5540, 5620, 6700, 6925, 7025, 13850, 14050, 18559, 18827, 27700, 28100, 37118, 37654, 74236, 75308, 77837, 92795, 94135, 155674, 185590, 188270, 311348, 371180, 376540, 389185, 463975, 470675, 778370, 927950, 941350, 1556740, 1855900, 1882700, 1945925, 3891850, 5215079, 7783700, 10430158, 20860316, 26075395, 52150790, 104301580, 130376975, 260753950, 521507900]

約数ペア:

[(1, 521507900), (2, 260753950), (4, 130376975), (5, 104301580), (10, 52150790), (20, 26075395), (25, 20860316), (50, 10430158), (67, 7783700), (100, 5215079), (134, 3891850), (268, 1945925), (277, 1882700), (281, 1855900), (335, 1556740), (554, 941350), (562, 927950), (670, 778370), (1108, 470675), (1124, 463975), (1340, 389185), (1385, 376540), (1405, 371180), (1675, 311348), (2770, 188270), (2810, 185590), (3350, 155674), (5540, 94135), (5620, 92795), (6700, 77837), (6925, 75308), (7025, 74236), (13850, 37654), (14050, 37118), (18559, 28100), (18827, 27700)]