28510860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67883}}^1$

素因数の和:67902

約数の個数: 48

約数和(自身を含む): 91236096

約数和(自身を除く): 62725236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67883, 135766, 203649, 271532, 339415, 407298, 475181, 678830, 814596, 950362, 1018245, 1357660, 1425543, 1900724, 2036490, 2375905, 2851086, 4072980, 4751810, 5702172, 7127715, 9503620, 14255430, 28510860]

約数ペア:

[(1, 28510860), (2, 14255430), (3, 9503620), (4, 7127715), (5, 5702172), (6, 4751810), (7, 4072980), (10, 2851086), (12, 2375905), (14, 2036490), (15, 1900724), (20, 1425543), (21, 1357660), (28, 1018245), (30, 950362), (35, 814596), (42, 678830), (60, 475181), (70, 407298), (84, 339415), (105, 271532), (140, 203649), (210, 135766), (420, 67883)]