386957405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 495452160

約数和(自身を除く): 108494755

約数列:

[1, 5, 23, 79, 115, 191, 223, 395, 955, 1115, 1817, 4393, 5129, 9085, 15089, 17617, 21965, 25645, 42593, 75445, 88085, 212965, 347047, 405191, 979639, 1735235, 2025955, 3364847, 4898195, 16824235, 77391481, 386957405]

約数ペア:

[(1, 386957405), (5, 77391481), (23, 16824235), (79, 4898195), (115, 3364847), (191, 2025955), (223, 1735235), (395, 979639), (955, 405191), (1115, 347047), (1817, 212965), (4393, 88085), (5129, 75445), (9085, 42593), (15089, 25645), (17617, 21965)]