1280521870

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{6211}}^1$

素因数の和:6660

約数の個数: 32

約数和(自身を含む): 2354844960

約数和(自身を除く): 1074323090

約数列:

[1, 2, 5, 10, 53, 106, 265, 389, 530, 778, 1945, 3890, 6211, 12422, 20617, 31055, 41234, 62110, 103085, 206170, 329183, 658366, 1645915, 2416079, 3291830, 4832158, 12080395, 24160790, 128052187, 256104374, 640260935, 1280521870]

約数ペア:

[(1, 1280521870), (2, 640260935), (5, 256104374), (10, 128052187), (53, 24160790), (106, 12080395), (265, 4832158), (389, 3291830), (530, 2416079), (778, 1645915), (1945, 658366), (3890, 329183), (6211, 206170), (12422, 103085), (20617, 62110), (31055, 41234)]