19209440

素因数分解:

$2^5\times 5^1\times {\mathrm{211}}^1\times {\mathrm{569}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 45677520

約数和(自身を除く): 26468080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 211, 422, 569, 844, 1055, 1138, 1688, 2110, 2276, 2845, 3376, 4220, 4552, 5690, 6752, 8440, 9104, 11380, 16880, 18208, 22760, 33760, 45520, 91040, 120059, 240118, 480236, 600295, 960472, 1200590, 1920944, 2401180, 3841888, 4802360, 9604720, 19209440]

約数ペア:

[(1, 19209440), (2, 9604720), (4, 4802360), (5, 3841888), (8, 2401180), (10, 1920944), (16, 1200590), (20, 960472), (32, 600295), (40, 480236), (80, 240118), (160, 120059), (211, 91040), (422, 45520), (569, 33760), (844, 22760), (1055, 18208), (1138, 16880), (1688, 11380), (2110, 9104), (2276, 8440), (2845, 6752), (3376, 5690), (4220, 4552)]