78421880

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{4093}}^1$

素因数の和:4583

約数の個数: 32

約数和(自身を含む): 176860800

約数和(自身を除く): 98438920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1916, 2395, 3832, 4093, 4790, 8186, 9580, 16372, 19160, 20465, 32744, 40930, 81860, 163720, 1960547, 3921094, 7842188, 9802735, 15684376, 19605470, 39210940, 78421880]

約数ペア:

[(1, 78421880), (2, 39210940), (4, 19605470), (5, 15684376), (8, 9802735), (10, 7842188), (20, 3921094), (40, 1960547), (479, 163720), (958, 81860), (1916, 40930), (2395, 32744), (3832, 20465), (4093, 19160), (4790, 16372), (8186, 9580)]