20975360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2341}}^1$

素因数の和:2369

約数の個数: 72

約数和(自身を含む): 57444576

約数和(自身を除く): 36469216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2341, 4480, 4682, 8960, 9364, 11705, 16387, 18728, 23410, 32774, 37456, 46820, 65548, 74912, 81935, 93640, 131096, 149824, 163870, 187280, 262192, 299648, 327740, 374560, 524384, 599296, 655480, 749120, 1048768, 1310960, 1498240, 2097536, 2621920, 2996480, 4195072, 5243840, 10487680, 20975360]

約数ペア:

[(1, 20975360), (2, 10487680), (4, 5243840), (5, 4195072), (7, 2996480), (8, 2621920), (10, 2097536), (14, 1498240), (16, 1310960), (20, 1048768), (28, 749120), (32, 655480), (35, 599296), (40, 524384), (56, 374560), (64, 327740), (70, 299648), (80, 262192), (112, 187280), (128, 163870), (140, 149824), (160, 131096), (224, 93640), (256, 81935), (280, 74912), (320, 65548), (448, 46820), (560, 37456), (640, 32774), (896, 23410), (1120, 18728), (1280, 16387), (1792, 11705), (2240, 9364), (2341, 8960), (4480, 4682)]