19158280

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1447}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 43266240

約数和(自身を除く): 24107960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1447, 1655, 2648, 2894, 3310, 5788, 6620, 7235, 11576, 13240, 14470, 28940, 57880, 478957, 957914, 1915828, 2394785, 3831656, 4789570, 9579140, 19158280]

約数ペア:

[(1, 19158280), (2, 9579140), (4, 4789570), (5, 3831656), (8, 2394785), (10, 1915828), (20, 957914), (40, 478957), (331, 57880), (662, 28940), (1324, 14470), (1447, 13240), (1655, 11576), (2648, 7235), (2894, 6620), (3310, 5788)]