18932920

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{941}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 42729120

約数和(自身を除く): 23796200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 941, 1006, 1882, 2012, 2515, 3764, 4024, 4705, 5030, 7528, 9410, 10060, 18820, 20120, 37640, 473323, 946646, 1893292, 2366615, 3786584, 4733230, 9466460, 18932920]

約数ペア:

[(1, 18932920), (2, 9466460), (4, 4733230), (5, 3786584), (8, 2366615), (10, 1893292), (20, 946646), (40, 473323), (503, 37640), (941, 20120), (1006, 18820), (1882, 10060), (2012, 9410), (2515, 7528), (3764, 5030), (4024, 4705)]