9940520

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1373}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 22506120

約数和(自身を除く): 12565600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1373, 1448, 1810, 2746, 3620, 5492, 6865, 7240, 10984, 13730, 27460, 54920, 248513, 497026, 994052, 1242565, 1988104, 2485130, 4970260, 9940520]

約数ペア:

[(1, 9940520), (2, 4970260), (4, 2485130), (5, 1988104), (8, 1242565), (10, 994052), (20, 497026), (40, 248513), (181, 54920), (362, 27460), (724, 13730), (905, 10984), (1373, 7240), (1448, 6865), (1810, 5492), (2746, 3620)]