19439420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1011

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 35428036

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 971, 1001, 1430, 1540, 1820, 1942, 2002, 2860, 3884, 4004, 4855, 5005, 6797, 9710, 10010, 10681, 12623, 13594, 19420, 20020, 21362, 25246, 27188, 33985, 42724, 50492, 53405, 63115, 67970, 74767, 88361, 106810, 126230, 135940, 138853, 149534, 176722, 213620, 252460, 277706, 299068, 353444, 373835, 441805, 555412, 694265, 747670, 883610, 971971, 1388530, 1495340, 1767220, 1943942, 2777060, 3887884, 4859855, 9719710, 19439420]

約数ペア:

[(1, 19439420), (2, 9719710), (4, 4859855), (5, 3887884), (7, 2777060), (10, 1943942), (11, 1767220), (13, 1495340), (14, 1388530), (20, 971971), (22, 883610), (26, 747670), (28, 694265), (35, 555412), (44, 441805), (52, 373835), (55, 353444), (65, 299068), (70, 277706), (77, 252460), (91, 213620), (110, 176722), (130, 149534), (140, 138853), (143, 135940), (154, 126230), (182, 106810), (220, 88361), (260, 74767), (286, 67970), (308, 63115), (364, 53405), (385, 50492), (455, 42724), (572, 33985), (715, 27188), (770, 25246), (910, 21362), (971, 20020), (1001, 19420), (1430, 13594), (1540, 12623), (1820, 10681), (1942, 10010), (2002, 9710), (2860, 6797), (3884, 5005), (4004, 4855)]