131678640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{182887}}^1$

素因数の和:182906

約数の個数: 60

約数和(自身を含む): 442223184

約数和(自身を除く): 310544544

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, 182887, 365774, 548661, 731548, 914435, 1097322, 1463096, 1645983, 1828870, 2194644, 2743305, 2926192, 3291966, 3657740, 4389288, 5486610, 6583932, 7315480, 8229915, 8778576, 10973220, 13167864, 14630960, 16459830, 21946440, 26335728, 32919660, 43892880, 65839320, 131678640]

約数ペア:

[(1, 131678640), (2, 65839320), (3, 43892880), (4, 32919660), (5, 26335728), (6, 21946440), (8, 16459830), (9, 14630960), (10, 13167864), (12, 10973220), (15, 8778576), (16, 8229915), (18, 7315480), (20, 6583932), (24, 5486610), (30, 4389288), (36, 3657740), (40, 3291966), (45, 2926192), (48, 2743305), (60, 2194644), (72, 1828870), (80, 1645983), (90, 1463096), (120, 1097322), (144, 914435), (180, 731548), (240, 548661), (360, 365774), (720, 182887)]