203814920

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{18133}}^1$

素因数の和:18425

約数の個数: 32

約数和(自身を含む): 460240920

約数和(自身を除く): 256426000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 18133, 36266, 72532, 90665, 145064, 181330, 362660, 725320, 5095373, 10190746, 20381492, 25476865, 40762984, 50953730, 101907460, 203814920]

約数ペア:

[(1, 203814920), (2, 101907460), (4, 50953730), (5, 40762984), (8, 25476865), (10, 20381492), (20, 10190746), (40, 5095373), (281, 725320), (562, 362660), (1124, 181330), (1405, 145064), (2248, 90665), (2810, 72532), (5620, 36266), (11240, 18133)]