2018553560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1\times {\mathrm{1987}}^1$

素因数の和:2340

約数の個数: 64

約数和(自身を含む): 4605400800

約数和(自身を除く): 2586847240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 233, 436, 466, 545, 872, 932, 1090, 1165, 1864, 1987, 2180, 2330, 3974, 4360, 4660, 7948, 9320, 9935, 15896, 19870, 25397, 39740, 50794, 79480, 101588, 126985, 203176, 216583, 253970, 433166, 462971, 507940, 866332, 925942, 1015880, 1082915, 1732664, 1851884, 2165830, 2314855, 3703768, 4331660, 4629710, 8663320, 9259420, 18518840, 50463839, 100927678, 201855356, 252319195, 403710712, 504638390, 1009276780, 2018553560]

約数ペア:

[(1, 2018553560), (2, 1009276780), (4, 504638390), (5, 403710712), (8, 252319195), (10, 201855356), (20, 100927678), (40, 50463839), (109, 18518840), (218, 9259420), (233, 8663320), (436, 4629710), (466, 4331660), (545, 3703768), (872, 2314855), (932, 2165830), (1090, 1851884), (1165, 1732664), (1864, 1082915), (1987, 1015880), (2180, 925942), (2330, 866332), (3974, 507940), (4360, 462971), (4660, 433166), (7948, 253970), (9320, 216583), (9935, 203176), (15896, 126985), (19870, 101588), (25397, 79480), (39740, 50794)]