17520940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{929}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 21851540

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 929, 943, 1858, 1886, 3716, 3772, 4645, 4715, 9290, 9430, 18580, 18860, 21367, 38089, 42734, 76178, 85468, 106835, 152356, 190445, 213670, 380890, 427340, 761780, 876047, 1752094, 3504188, 4380235, 8760470, 17520940]

約数ペア:

[(1, 17520940), (2, 8760470), (4, 4380235), (5, 3504188), (10, 1752094), (20, 876047), (23, 761780), (41, 427340), (46, 380890), (82, 213670), (92, 190445), (115, 152356), (164, 106835), (205, 85468), (230, 76178), (410, 42734), (460, 38089), (820, 21367), (929, 18860), (943, 18580), (1858, 9430), (1886, 9290), (3716, 4715), (3772, 4645)]