12721520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{22717}}^1$

素因数の和:22737

約数の個数: 40

約数和(自身を含む): 33804384

約数和(自身を除く): 21082864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 22717, 45434, 90868, 113585, 159019, 181736, 227170, 318038, 363472, 454340, 636076, 795095, 908680, 1272152, 1590190, 1817360, 2544304, 3180380, 6360760, 12721520]

約数ペア:

[(1, 12721520), (2, 6360760), (4, 3180380), (5, 2544304), (7, 1817360), (8, 1590190), (10, 1272152), (14, 908680), (16, 795095), (20, 636076), (28, 454340), (35, 363472), (40, 318038), (56, 227170), (70, 181736), (80, 159019), (112, 113585), (140, 90868), (280, 45434), (560, 22717)]