19866080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9551}}^1$

素因数の和:9579

約数の個数: 48

約数和(自身を含む): 50549184

約数和(自身を除く): 30683104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9551, 19102, 38204, 47755, 76408, 95510, 124163, 152816, 191020, 248326, 305632, 382040, 496652, 620815, 764080, 993304, 1241630, 1528160, 1986608, 2483260, 3973216, 4966520, 9933040, 19866080]

約数ペア:

[(1, 19866080), (2, 9933040), (4, 4966520), (5, 3973216), (8, 2483260), (10, 1986608), (13, 1528160), (16, 1241630), (20, 993304), (26, 764080), (32, 620815), (40, 496652), (52, 382040), (65, 305632), (80, 248326), (104, 191020), (130, 152816), (160, 124163), (208, 95510), (260, 76408), (416, 47755), (520, 38204), (1040, 19102), (2080, 9551)]