400960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{179}}^1$

素因数の和:203

約数の個数: 56

約数和(自身を含む): 1097280

約数和(自身を除く): 696320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 179, 224, 280, 320, 358, 448, 560, 716, 895, 1120, 1253, 1432, 1790, 2240, 2506, 2864, 3580, 5012, 5728, 6265, 7160, 10024, 11456, 12530, 14320, 20048, 25060, 28640, 40096, 50120, 57280, 80192, 100240, 200480, 400960]

約数ペア:

[(1, 400960), (2, 200480), (4, 100240), (5, 80192), (7, 57280), (8, 50120), (10, 40096), (14, 28640), (16, 25060), (20, 20048), (28, 14320), (32, 12530), (35, 11456), (40, 10024), (56, 7160), (64, 6265), (70, 5728), (80, 5012), (112, 3580), (140, 2864), (160, 2506), (179, 2240), (224, 1790), (280, 1432), (320, 1253), (358, 1120), (448, 895), (560, 716)]