18841001480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{132199}}^1$

素因数の和:132726

約数の個数: 64

約数和(自身を含む): 48543840000

約数和(自身を除く): 29702838520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 509, 1018, 2036, 2545, 3563, 4072, 5090, 7126, 10180, 14252, 17815, 20360, 28504, 35630, 71260, 132199, 142520, 264398, 528796, 660995, 925393, 1057592, 1321990, 1850786, 2643980, 3701572, 4626965, 5287960, 7403144, 9253930, 18507860, 37015720, 67289291, 134578582, 269157164, 336446455, 471025037, 538314328, 672892910, 942050074, 1345785820, 1884100148, 2355125185, 2691571640, 3768200296, 4710250370, 9420500740, 18841001480]

約数ペア:

[(1, 18841001480), (2, 9420500740), (4, 4710250370), (5, 3768200296), (7, 2691571640), (8, 2355125185), (10, 1884100148), (14, 1345785820), (20, 942050074), (28, 672892910), (35, 538314328), (40, 471025037), (56, 336446455), (70, 269157164), (140, 134578582), (280, 67289291), (509, 37015720), (1018, 18507860), (2036, 9253930), (2545, 7403144), (3563, 5287960), (4072, 4626965), (5090, 3701572), (7126, 2643980), (10180, 1850786), (14252, 1321990), (17815, 1057592), (20360, 925393), (28504, 660995), (35630, 528796), (71260, 264398), (132199, 142520)]