67991280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{40471}}^1$

素因数の和:40494

約数の個数: 80

約数和(自身を含む): 240889344

約数和(自身を除く): 172898064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 40471, 80942, 121413, 161884, 202355, 242826, 283297, 323768, 404710, 485652, 566594, 607065, 647536, 809420, 849891, 971304, 1133188, 1214130, 1416485, 1618840, 1699782, 1942608, 2266376, 2428260, 2832970, 3237680, 3399564, 4249455, 4532752, 4856520, 5665940, 6799128, 8498910, 9713040, 11331880, 13598256, 16997820, 22663760, 33995640, 67991280]

約数ペア:

[(1, 67991280), (2, 33995640), (3, 22663760), (4, 16997820), (5, 13598256), (6, 11331880), (7, 9713040), (8, 8498910), (10, 6799128), (12, 5665940), (14, 4856520), (15, 4532752), (16, 4249455), (20, 3399564), (21, 3237680), (24, 2832970), (28, 2428260), (30, 2266376), (35, 1942608), (40, 1699782), (42, 1618840), (48, 1416485), (56, 1214130), (60, 1133188), (70, 971304), (80, 849891), (84, 809420), (105, 647536), (112, 607065), (120, 566594), (140, 485652), (168, 404710), (210, 323768), (240, 283297), (280, 242826), (336, 202355), (420, 161884), (560, 121413), (840, 80942), (1680, 40471)]