388403720

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{36097}}^1$

素因数の和:36377

約数の個数: 32

約数和(自身を含む): 877181400

約数和(自身を除く): 488777680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 10760, 36097, 72194, 144388, 180485, 288776, 360970, 721940, 1443880, 9710093, 19420186, 38840372, 48550465, 77680744, 97100930, 194201860, 388403720]

約数ペア:

[(1, 388403720), (2, 194201860), (4, 97100930), (5, 77680744), (8, 48550465), (10, 38840372), (20, 19420186), (40, 9710093), (269, 1443880), (538, 721940), (1076, 360970), (1345, 288776), (2152, 180485), (2690, 144388), (5380, 72194), (10760, 36097)]