78398640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{108887}}^1$

素因数の和:108906

約数の個数: 60

約数和(自身を含む): 263291184

約数和(自身を除く): 184892544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 108887, 217774, 326661, 435548, 544435, 653322, 871096, 979983, 1088870, 1306644, 1633305, 1742192, 1959966, 2177740, 2613288, 3266610, 3919932, 4355480, 4899915, 5226576, 6533220, 7839864, 8710960, 9799830, 13066440, 15679728, 19599660, 26132880, 39199320, 78398640]

約数ペア:

[(1, 78398640), (2, 39199320), (3, 26132880), (4, 19599660), (5, 15679728), (6, 13066440), (8, 9799830), (9, 8710960), (10, 7839864), (12, 6533220), (15, 5226576), (16, 4899915), (18, 4355480), (20, 3919932), (24, 3266610), (30, 2613288), (36, 2177740), (40, 1959966), (45, 1742192), (48, 1633305), (60, 1306644), (72, 1088870), (80, 979983), (90, 871096), (120, 653322), (144, 544435), (180, 435548), (240, 326661), (360, 217774), (720, 108887)]