20176940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{863}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 28594132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 835, 863, 1169, 1670, 1726, 2338, 3340, 3452, 4315, 4676, 5845, 6041, 8630, 11690, 12082, 17260, 23380, 24164, 30205, 60410, 120820, 144121, 288242, 576484, 720605, 1008847, 1441210, 2017694, 2882420, 4035388, 5044235, 10088470, 20176940]

約数ペア:

[(1, 20176940), (2, 10088470), (4, 5044235), (5, 4035388), (7, 2882420), (10, 2017694), (14, 1441210), (20, 1008847), (28, 720605), (35, 576484), (70, 288242), (140, 144121), (167, 120820), (334, 60410), (668, 30205), (835, 24164), (863, 23380), (1169, 17260), (1670, 12082), (1726, 11690), (2338, 8630), (3340, 6041), (3452, 5845), (4315, 4676)]