20346640

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{607}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 47496960

約数和(自身を除く): 27150320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 607, 838, 1214, 1676, 2095, 2428, 3035, 3352, 4190, 4856, 6070, 6704, 8380, 9712, 12140, 16760, 24280, 33520, 48560, 254333, 508666, 1017332, 1271665, 2034664, 2543330, 4069328, 5086660, 10173320, 20346640]

約数ペア:

[(1, 20346640), (2, 10173320), (4, 5086660), (5, 4069328), (8, 2543330), (10, 2034664), (16, 1271665), (20, 1017332), (40, 508666), (80, 254333), (419, 48560), (607, 33520), (838, 24280), (1214, 16760), (1676, 12140), (2095, 9712), (2428, 8380), (3035, 6704), (3352, 6070), (4190, 4856)]