20406064

素因数分解:

$2^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1091}}^1$

素因数の和:1273

約数の個数: 40

約数和(自身を含む): 45497088

約数和(自身を除く): 25091024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 167, 334, 668, 1091, 1169, 1336, 2182, 2338, 2672, 4364, 4676, 7637, 8728, 9352, 15274, 17456, 18704, 30548, 61096, 122192, 182197, 364394, 728788, 1275379, 1457576, 2550758, 2915152, 5101516, 10203032, 20406064]

約数ペア:

[(1, 20406064), (2, 10203032), (4, 5101516), (7, 2915152), (8, 2550758), (14, 1457576), (16, 1275379), (28, 728788), (56, 364394), (112, 182197), (167, 122192), (334, 61096), (668, 30548), (1091, 18704), (1169, 17456), (1336, 15274), (2182, 9352), (2338, 8728), (2672, 7637), (4364, 4676)]