418169840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 120

約数和(自身を含む): 1090095408

約数和(自身を除く): 671925568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 257, 344, 430, 440, 473, 514, 688, 860, 880, 946, 1028, 1285, 1720, 1849, 1892, 2056, 2365, 2570, 2827, 3440, 3698, 3784, 4112, 4730, 5140, 5654, 7396, 7568, 9245, 9460, 10280, 11051, 11308, 14135, 14792, 18490, 18920, 20339, 20560, 22102, 22616, 28270, 29584, 36980, 37840, 40678, 44204, 45232, 55255, 56540, 73960, 81356, 88408, 101695, 110510, 113080, 121561, 147920, 162712, 176816, 203390, 221020, 226160, 243122, 325424, 406780, 442040, 475193, 486244, 607805, 813560, 884080, 950386, 972488, 1215610, 1627120, 1900772, 1944976, 2375965, 2431220, 3801544, 4751930, 4862440, 5227123, 7603088, 9503860, 9724880, 10454246, 19007720, 20908492, 26135615, 38015440, 41816984, 52271230, 83633968, 104542460, 209084920, 418169840]

約数ペア:

[(1, 418169840), (2, 209084920), (4, 104542460), (5, 83633968), (8, 52271230), (10, 41816984), (11, 38015440), (16, 26135615), (20, 20908492), (22, 19007720), (40, 10454246), (43, 9724880), (44, 9503860), (55, 7603088), (80, 5227123), (86, 4862440), (88, 4751930), (110, 3801544), (172, 2431220), (176, 2375965), (215, 1944976), (220, 1900772), (257, 1627120), (344, 1215610), (430, 972488), (440, 950386), (473, 884080), (514, 813560), (688, 607805), (860, 486244), (880, 475193), (946, 442040), (1028, 406780), (1285, 325424), (1720, 243122), (1849, 226160), (1892, 221020), (2056, 203390), (2365, 176816), (2570, 162712), (2827, 147920), (3440, 121561), (3698, 113080), (3784, 110510), (4112, 101695), (4730, 88408), (5140, 81356), (5654, 73960), (7396, 56540), (7568, 55255), (9245, 45232), (9460, 44204), (10280, 40678), (11051, 37840), (11308, 36980), (14135, 29584), (14792, 28270), (18490, 22616), (18920, 22102), (20339, 20560)]