261881620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:270

約数の個数: 192

約数和(自身を含む): 751435776

約数和(自身を除く): 489554156

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 103, 110, 127, 130, 140, 143, 154, 182, 206, 220, 254, 260, 286, 308, 364, 385, 412, 455, 508, 515, 572, 635, 715, 721, 770, 889, 910, 1001, 1030, 1133, 1270, 1339, 1397, 1430, 1442, 1540, 1651, 1778, 1820, 2002, 2060, 2266, 2540, 2678, 2794, 2860, 2884, 3302, 3556, 3605, 4004, 4445, 4532, 5005, 5356, 5588, 5665, 6604, 6695, 6985, 7210, 7931, 8255, 8890, 9373, 9779, 10010, 11330, 11557, 13081, 13390, 13970, 14420, 14729, 15862, 16510, 17780, 18161, 18746, 19558, 20020, 22660, 23114, 26162, 26780, 27940, 29458, 31724, 33020, 36322, 37492, 39116, 39655, 46228, 46865, 48895, 52324, 57785, 58916, 65405, 72644, 73645, 79310, 90805, 91567, 93730, 97790, 103103, 115570, 127127, 130810, 143891, 147290, 158620, 170053, 181610, 183134, 187460, 195580, 206206, 231140, 254254, 261620, 287782, 294580, 340106, 363220, 366268, 412412, 457835, 508508, 515515, 575564, 635635, 680212, 719455, 850265, 915670, 1007237, 1031030, 1190371, 1271270, 1438910, 1700530, 1831340, 1870583, 2014474, 2062060, 2380742, 2542540, 2877820, 3401060, 3741166, 4028948, 4761484, 5036185, 5951855, 7482332, 9352915, 10072370, 11903710, 13094081, 18705830, 20144740, 23807420, 26188162, 37411660, 52376324, 65470405, 130940810, 261881620]

約数ペア:

[(1, 261881620), (2, 130940810), (4, 65470405), (5, 52376324), (7, 37411660), (10, 26188162), (11, 23807420), (13, 20144740), (14, 18705830), (20, 13094081), (22, 11903710), (26, 10072370), (28, 9352915), (35, 7482332), (44, 5951855), (52, 5036185), (55, 4761484), (65, 4028948), (70, 3741166), (77, 3401060), (91, 2877820), (103, 2542540), (110, 2380742), (127, 2062060), (130, 2014474), (140, 1870583), (143, 1831340), (154, 1700530), (182, 1438910), (206, 1271270), (220, 1190371), (254, 1031030), (260, 1007237), (286, 915670), (308, 850265), (364, 719455), (385, 680212), (412, 635635), (455, 575564), (508, 515515), (515, 508508), (572, 457835), (635, 412412), (715, 366268), (721, 363220), (770, 340106), (889, 294580), (910, 287782), (1001, 261620), (1030, 254254), (1133, 231140), (1270, 206206), (1339, 195580), (1397, 187460), (1430, 183134), (1442, 181610), (1540, 170053), (1651, 158620), (1778, 147290), (1820, 143891), (2002, 130810), (2060, 127127), (2266, 115570), (2540, 103103), (2678, 97790), (2794, 93730), (2860, 91567), (2884, 90805), (3302, 79310), (3556, 73645), (3605, 72644), (4004, 65405), (4445, 58916), (4532, 57785), (5005, 52324), (5356, 48895), (5588, 46865), (5665, 46228), (6604, 39655), (6695, 39116), (6985, 37492), (7210, 36322), (7931, 33020), (8255, 31724), (8890, 29458), (9373, 27940), (9779, 26780), (10010, 26162), (11330, 23114), (11557, 22660), (13081, 20020), (13390, 19558), (13970, 18746), (14420, 18161), (14729, 17780), (15862, 16510)]