1991141230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{356197}}^1$

素因数の和:356260

約数の個数: 32

約数和(自身を含む): 3949523424

約数和(自身を除く): 1958382194

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 356197, 712394, 1780985, 3561970, 4630561, 9261122, 15316471, 23152805, 30632942, 46305610, 76582355, 153164710, 199114123, 398228246, 995570615, 1991141230]

約数ペア:

[(1, 1991141230), (2, 995570615), (5, 398228246), (10, 199114123), (13, 153164710), (26, 76582355), (43, 46305610), (65, 30632942), (86, 23152805), (130, 15316471), (215, 9261122), (430, 4630561), (559, 3561970), (1118, 1780985), (2795, 712394), (5590, 356197)]