68637780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:540

約数の個数: 144

約数和(自身を含む): 223816320

約数和(自身を除く): 155178540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 243, 261, 270, 290, 324, 348, 405, 435, 486, 487, 522, 540, 580, 783, 810, 870, 972, 974, 1044, 1215, 1305, 1461, 1566, 1620, 1740, 1948, 2349, 2430, 2435, 2610, 2922, 3132, 3915, 4383, 4698, 4860, 4870, 5220, 5844, 7047, 7305, 7830, 8766, 9396, 9740, 11745, 13149, 14094, 14123, 14610, 15660, 17532, 21915, 23490, 26298, 28188, 28246, 29220, 35235, 39447, 42369, 43830, 46980, 52596, 56492, 65745, 70470, 70615, 78894, 84738, 87660, 118341, 127107, 131490, 140940, 141230, 157788, 169476, 197235, 211845, 236682, 254214, 262980, 282460, 381321, 394470, 423690, 473364, 508428, 591705, 635535, 762642, 788940, 847380, 1143963, 1183410, 1271070, 1525284, 1906605, 2287926, 2366820, 2542140, 3431889, 3813210, 4575852, 5719815, 6863778, 7626420, 11439630, 13727556, 17159445, 22879260, 34318890, 68637780]

約数ペア:

[(1, 68637780), (2, 34318890), (3, 22879260), (4, 17159445), (5, 13727556), (6, 11439630), (9, 7626420), (10, 6863778), (12, 5719815), (15, 4575852), (18, 3813210), (20, 3431889), (27, 2542140), (29, 2366820), (30, 2287926), (36, 1906605), (45, 1525284), (54, 1271070), (58, 1183410), (60, 1143963), (81, 847380), (87, 788940), (90, 762642), (108, 635535), (116, 591705), (135, 508428), (145, 473364), (162, 423690), (174, 394470), (180, 381321), (243, 282460), (261, 262980), (270, 254214), (290, 236682), (324, 211845), (348, 197235), (405, 169476), (435, 157788), (486, 141230), (487, 140940), (522, 131490), (540, 127107), (580, 118341), (783, 87660), (810, 84738), (870, 78894), (972, 70615), (974, 70470), (1044, 65745), (1215, 56492), (1305, 52596), (1461, 46980), (1566, 43830), (1620, 42369), (1740, 39447), (1948, 35235), (2349, 29220), (2430, 28246), (2435, 28188), (2610, 26298), (2922, 23490), (3132, 21915), (3915, 17532), (4383, 15660), (4698, 14610), (4860, 14123), (4870, 14094), (5220, 13149), (5844, 11745), (7047, 9740), (7305, 9396), (7830, 8766)]