18087110

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 33480000

約数和(自身を除く): 15392890

約数列:

[1, 2, 5, 10, 61, 122, 149, 199, 298, 305, 398, 610, 745, 995, 1490, 1990, 9089, 12139, 18178, 24278, 29651, 45445, 59302, 60695, 90890, 121390, 148255, 296510, 1808711, 3617422, 9043555, 18087110]

約数ペア:

[(1, 18087110), (2, 9043555), (5, 3617422), (10, 1808711), (61, 296510), (122, 148255), (149, 121390), (199, 90890), (298, 60695), (305, 59302), (398, 45445), (610, 29651), (745, 24278), (995, 18178), (1490, 12139), (1990, 9089)]