20313160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72547}}^1$

素因数の和:72565

約数の個数: 32

約数和(自身を含む): 52234560

約数和(自身を除く): 31921400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72547, 145094, 290188, 362735, 507829, 580376, 725470, 1015658, 1450940, 2031316, 2539145, 2901880, 4062632, 5078290, 10156580, 20313160]

約数ペア:

[(1, 20313160), (2, 10156580), (4, 5078290), (5, 4062632), (7, 2901880), (8, 2539145), (10, 2031316), (14, 1450940), (20, 1015658), (28, 725470), (35, 580376), (40, 507829), (56, 362735), (70, 290188), (140, 145094), (280, 72547)]