18169840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17471}}^1$

素因数の和:17497

約数の個数: 40

約数和(自身を含む): 45497088

約数和(自身を除く): 27327248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17471, 34942, 69884, 87355, 139768, 174710, 227123, 279536, 349420, 454246, 698840, 908492, 1135615, 1397680, 1816984, 2271230, 3633968, 4542460, 9084920, 18169840]

約数ペア:

[(1, 18169840), (2, 9084920), (4, 4542460), (5, 3633968), (8, 2271230), (10, 1816984), (13, 1397680), (16, 1135615), (20, 908492), (26, 698840), (40, 454246), (52, 349420), (65, 279536), (80, 227123), (104, 174710), (130, 139768), (208, 87355), (260, 69884), (520, 34942), (1040, 17471)]