18702929390

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4807951}}^1$

素因数の和:4808347

約数の個数: 16

約数和(自身を含む): 33751823040

約数和(自身を除く): 15048893650

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 4807951, 9615902, 24039755, 48079510, 1870292939, 3740585878, 9351464695, 18702929390]

約数ペア:

[(1, 18702929390), (2, 9351464695), (5, 3740585878), (10, 1870292939), (389, 48079510), (778, 24039755), (1945, 9615902), (3890, 4807951)]