19750480

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{911}}^1$

素因数の和:1195

約数の個数: 40

約数和(自身を含む): 46139904

約数和(自身を除く): 26389424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 911, 1084, 1355, 1822, 2168, 2710, 3644, 4336, 4555, 5420, 7288, 9110, 10840, 14576, 18220, 21680, 36440, 72880, 246881, 493762, 987524, 1234405, 1975048, 2468810, 3950096, 4937620, 9875240, 19750480]

約数ペア:

[(1, 19750480), (2, 9875240), (4, 4937620), (5, 3950096), (8, 2468810), (10, 1975048), (16, 1234405), (20, 987524), (40, 493762), (80, 246881), (271, 72880), (542, 36440), (911, 21680), (1084, 18220), (1355, 14576), (1822, 10840), (2168, 9110), (2710, 7288), (3644, 5420), (4336, 4555)]