80378640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{111637}}^1$

素因数の和:111656

約数の個数: 60

約数和(自身を含む): 269940684

約数和(自身を除く): 189562044

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, 111637, 223274, 334911, 446548, 558185, 669822, 893096, 1004733, 1116370, 1339644, 1674555, 1786192, 2009466, 2232740, 2679288, 3349110, 4018932, 4465480, 5023665, 5358576, 6698220, 8037864, 8930960, 10047330, 13396440, 16075728, 20094660, 26792880, 40189320, 80378640]

約数ペア:

[(1, 80378640), (2, 40189320), (3, 26792880), (4, 20094660), (5, 16075728), (6, 13396440), (8, 10047330), (9, 8930960), (10, 8037864), (12, 6698220), (15, 5358576), (16, 5023665), (18, 4465480), (20, 4018932), (24, 3349110), (30, 2679288), (36, 2232740), (40, 2009466), (45, 1786192), (48, 1674555), (60, 1339644), (72, 1116370), (80, 1004733), (90, 893096), (120, 669822), (144, 558185), (180, 446548), (240, 334911), (360, 223274), (720, 111637)]