20121690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8081}}^1$

素因数の和:8174

約数の個数: 32

約数和(自身を含む): 48879936

約数和(自身を除く): 28758246

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490, 8081, 16162, 24243, 40405, 48486, 80810, 121215, 242430, 670723, 1341446, 2012169, 3353615, 4024338, 6707230, 10060845, 20121690]

約数ペア:

[(1, 20121690), (2, 10060845), (3, 6707230), (5, 4024338), (6, 3353615), (10, 2012169), (15, 1341446), (30, 670723), (83, 242430), (166, 121215), (249, 80810), (415, 48486), (498, 40405), (830, 24243), (1245, 16162), (2490, 8081)]