16403780720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10791961}}^1$

素因数の和:10791993

約数の個数: 40

約数和(自身を含む): 40146098640

約数和(自身を除く): 23742317920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 10791961, 21583922, 43167844, 53959805, 86335688, 107919610, 172671376, 205047259, 215839220, 410094518, 431678440, 820189036, 863356880, 1025236295, 1640378072, 2050472590, 3280756144, 4100945180, 8201890360, 16403780720]

約数ペア:

[(1, 16403780720), (2, 8201890360), (4, 4100945180), (5, 3280756144), (8, 2050472590), (10, 1640378072), (16, 1025236295), (19, 863356880), (20, 820189036), (38, 431678440), (40, 410094518), (76, 215839220), (80, 205047259), (95, 172671376), (152, 107919610), (190, 86335688), (304, 53959805), (380, 43167844), (760, 21583922), (1520, 10791961)]