491720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 1166400

約数和(自身を除く): 674680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 647, 760, 1294, 2588, 3235, 5176, 6470, 12293, 12940, 24586, 25880, 49172, 61465, 98344, 122930, 245860, 491720]

約数ペア:

[(1, 491720), (2, 245860), (4, 122930), (5, 98344), (8, 61465), (10, 49172), (19, 25880), (20, 24586), (38, 12940), (40, 12293), (76, 6470), (95, 5176), (152, 3235), (190, 2588), (380, 1294), (647, 760)]