19319320

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1553}}^1$

素因数の和:1875

約数の個数: 32

約数和(自身を含む): 43636320

約数和(自身を除く): 24317000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1553, 1555, 2488, 3106, 3110, 6212, 6220, 7765, 12424, 12440, 15530, 31060, 62120, 482983, 965966, 1931932, 2414915, 3863864, 4829830, 9659660, 19319320]

約数ペア:

[(1, 19319320), (2, 9659660), (4, 4829830), (5, 3863864), (8, 2414915), (10, 1931932), (20, 965966), (40, 482983), (311, 62120), (622, 31060), (1244, 15530), (1553, 12440), (1555, 12424), (2488, 7765), (3106, 6220), (3110, 6212)]