8151440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 21159360

約数和(自身を除く): 13007920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 157, 176, 220, 236, 295, 314, 440, 472, 590, 628, 649, 785, 880, 944, 1180, 1256, 1298, 1570, 1727, 2360, 2512, 2596, 3140, 3245, 3454, 4720, 5192, 6280, 6490, 6908, 8635, 9263, 10384, 12560, 12980, 13816, 17270, 18526, 25960, 27632, 34540, 37052, 46315, 51920, 69080, 74104, 92630, 101893, 138160, 148208, 185260, 203786, 370520, 407572, 509465, 741040, 815144, 1018930, 1630288, 2037860, 4075720, 8151440]

約数ペア:

[(1, 8151440), (2, 4075720), (4, 2037860), (5, 1630288), (8, 1018930), (10, 815144), (11, 741040), (16, 509465), (20, 407572), (22, 370520), (40, 203786), (44, 185260), (55, 148208), (59, 138160), (80, 101893), (88, 92630), (110, 74104), (118, 69080), (157, 51920), (176, 46315), (220, 37052), (236, 34540), (295, 27632), (314, 25960), (440, 18526), (472, 17270), (590, 13816), (628, 12980), (649, 12560), (785, 10384), (880, 9263), (944, 8635), (1180, 6908), (1256, 6490), (1298, 6280), (1570, 5192), (1727, 4720), (2360, 3454), (2512, 3245), (2596, 3140)]